Keith Urban was forced to cancel his South Carolina concert as he recovers from a mild illness.

The 57-year-old country singer had been scheduled to perform Thursday night at the Bon Secours Wellness Arena in Greenville, as part of his High and Alive tour but canceled at the last minute.

The venue's website released a statement saying, "Keith Urban has been advised by his longtime laryngologist Dr. Gaelyn Garrett, from the Vanderbilt Voice Center, to cancel his performance in Greenville, SC tonight at Bon Secours Wellness Arena due to laryngitis which began earlier this week.  He has been placed on complete vocal rest and Dr. Garrett is optimistic that he will be back onstage for his Nashville show."

The statement also included a personal message from Urban apologizing to fans for the sudden cancellation.

KEITH URBAN SEEN FOR FIRST TIME SINCE NICOLE KIDMAN DIVORCE FILING

"Hey Greenville,  I’m so SO sorry to have to cancel the show …. I know all the logistics it takes to get to a concert these days and I’ve never taken any of that, or any of YOU for granted," he said. "I’m looking forward to getting back there when we can!!!!!"

The cancellation comes just weeks after Urban and his estranged wife, Nicole Kidman, filed for divorce after nearly 20 years of marriage.

News of their separation broke Sept. 29, with Kidman filing for divorce the following day. According to court documents obtained by Fox News Digital, Kidman cited "irreconcilable differences" and ongoing "marital difficulties" as their reason for their split and listed Sept. 30 as their date of separation.

"Nicole’s sister [Antonia] has been a rock, and the entire Kidman family has come together to support one another," a source told People when the news broke.

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"She didn’t want this," the source added. "She has been fighting to save the marriage."

In a recent interview with Harper's Bazaar, published Oct. 9, Kidman discussed how she copes with difficult situations by drawing comparisons to similar experiences she has had in the past.

While she didn't name Urban outright, she explained that she has learned new ways to deal with hardship as she gets older, saying, "The best part is the experiences that you've accumulated," because, at a certain point, she can look at a situation and think, "Oh, I’ve been here before. I actually know how to handle this now.

"There’s something to knowing that no matter how painful or how difficult or how devastating something is, there is a way through," she told the outlet. "You’re going to have to feel it. You’re not going to be able to numb it. You are going to have to feel it, and it's going to feel insurmountable at times. You’re going to feel like you’re broken, but if you move gently and slowly — and it can take an enormous amount of time — it does pass."

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Urban and Kidman first met in 2005 at an event in Australia and were married in June 2006. They share two daughters: Sunday Rose, 17, and Faith Margaret, 14.

The U.S. is planning to offer rewards to Gazans who help locate the bodies of the deceased hostages who were held by Hamas, a pair of senior White House advisors told reporters Wednesday evening.

"We're probably going to put together some sort of program where we're going to ask people to see if they can help us to locate bodies. And we're going to pay rewards for that type of good behavior," one advisor said.

As part of the ceasefire agreement, all 20 living hostages have been returned to Israel, along with nine bodies of the deceased. Nineteen more bodies have yet to be located.

Hamas claims it does not know the location of the other bodies, and "significant efforts and special equipment" would be needed to locate them.

IDF SAYS BODY TURNED OVER BY HAMAS DOESN'T MATCH ANY HOSTAGES

An advisor tamped down accusations that Hamas had violated the ceasefire agreements, insisting the terms of the agreement prioritized living hostages, and they expected bodies to be difficult to locate in a war zone.

Still, they added, "I can tell you that we're not going to leave here until everybody comes home."

"We've heard a lot of people saying well, you know, Hamas violated the deal, because not all the bodies have been returned. I think the understanding we had with them was we'd get all the live hostages, out, which they did honor that."

EXCLUSIVE: ISRAELI AMBASSADOR SAYS NO PEACE IN GAZA UNLESS HAMAS HANDS OVER ALL 48 HOSTAGES, DISARMS

Israeli intelligence and Turkish retrieval experts, trained for Turkey’s frequent earthquakes, will aid the effort to locate the 19 remaining bodies.

"You have to understand the complexity of the conditions on the ground," an advisor said. "The entire Gaza Strip has been pulverized. It looks like something out of a movie. And there's very, very little buildings left standing."

The advisor equated the debris levels to those seen after the 9/11 attack on the World Trade Center. "This is, I don't know, it feels like multiple times more."

Amid the debris are unexploded ordnance, further complicating body retrieval.

An advisor also detailed plans for "safe zones" behind the Yellow Line — the area still occupied by the Israeli Defense Forces in Gaza — for Palestinians looking to flee Hamas as the militant group conducts executions across the strip.

"Israel is very committed to creating safety for the people of Gaza who want to live in peace. And so this is a new line of effort that we requested. And that it was met with a lot of enthusiasm from Israel to try to set this up."

Violent clashes between Hamas and rival groups have been reported in areas across Gaza, and videos circulating across social media appear to show executions.

An advisor told reporters it had told Hamas to stop the killings.

"There have been a lot of reports in Gaza of Hamas killing and going after Palestinian civilians. That's something that we've been working with the mediators to send a message to say we'd really like to see that stop."

"We are seeing different actions on all sides that, obviously, that President Trump and his team are working very hard to minimize."

An Israeli military official told Fox News Digital the killings are "Hamas’s deliberate attempt to show the killing publicly and reestablish its rule by terrorizing civilians."

Trump earlier this week suggested Hamas was conducting police activities and those who were killed were gang members.

"[Hamas] do want to stop the problems and they've been open about it, and we gave them approval for a period of time," he told reporters on Monday.

"You have close to 2 million people going back to buildings that have been demolished, and a lot of bad things can happen. So we want it to be — we want it to be safe."

The president added on Tuesday: "They did take out a couple of gangs that were very bad gangs, very, very bad."

"And that didn't bother me much, to be honest with you," he added.

On Monday, Hamas returned all living hostages, showing a positive sign for the historic but tenuous ceasefire agreement with Israel. The IDF, in turn, pulled back in Gaza to behind what’s known as a "Yellow line," part of Phase One of the agreement.

Fox News' Efrat Lachter contributed to this report.