Two suspects are on the loose after separate New York City subway attacks, with one man slashed in the face with a sharp object and a woman shoved into the side of a subway car. 

Police say a 33-year-old victim reported that he was riding the southbound D train in Manhattan Friday when he noticed another individual aboard the train acting erratically, according to a report from WABC.

The victim said the erratic individual then approached him unprovoked and "slashed" him on the chin with an unknown sharp object.

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Police are now searching for the suspect, who fled when the train stopped at 53rd Street and Seventh Avenue. 

"The victim was transported to Bellevue Hospital and was reportedly in stable condition. There are no arrests and the investigation remains ongoing," an NYPD spokesperson told Fox News Digital. "The individual is described as a male, approximately 20 to 25 years of age, dark complexion, 5’7" and last seen wearing a gray hooded sweatshirt."

In another incident Sunday, a 42-year-old woman was transported to Cornell Hospital after she was shoved into the side of a standing subway car in Manhattan, according to a report from the New York Post.

The suspect reportedly fled from the station in an unknown direction, police said, while what provoked the assault remains unknown.

The incidents come as crime on city subways has gained renewed attention amid the controversial death of Jordan Neely, who was acting erratically and threatening passengers on a train earlier this month before he was confronted and placed in a chokehold by Marine veteran Daniel Penny.

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Penny was criminally charged in the incident with second-degree manslaughter. If convicted, he faces a maximum of 15 years in prison.

In his first public comments since the incident, Penny said he was "deeply saddened" by Neely's death but blamed "the system" for failing New Yorkers.

"It’s tragic what happened to him," Penny said. "Hopefully, we can change the system that’s so desperately failed us."

Penny has had many rally to his defense in the aftermath of the incident, including fellow passengers on the train.

"It was self-defense, and I believe in my heart that [Penny] saved a lot of people that day that could have gotten hurt," an eyewitness told Fox News Digital last week.

The family of a Chinatown woman brutally stabbed to death is now suing New York City and the NYPD officers who responded to initial 911 calls from neighbors. 

The estate of Christian Yuna Lee filed a lawsuit against the city of New York and 10 members of the New York City Police Department in Manhattan Criminal Court earlier this month. Lee was allegedly killed by a homeless man with a lengthy rap sheet, who was caught on video slipping into her building and tailing her up to her apartment last year 

Lee, a 35-year-old Korean American creative producer, was found stabbed more than 40 times in the bathtub of her apartment on Chrystie Street in Manhattan on Feb. 13, 2022. 

Police say they arrested a homeless man, Assamad Nash, 25, who was found hiding under Lee’s mattress. Nash has since pleaded not guilty to murder, burglary, and sexually motivated burglary charges in connection to the Lee’s death. The lawsuit notes that Lee’s apartment was across the street from Sara D. Roosevelt Park, which had long attracted crime, drug users, and the homeless. 

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Months before Lee’s death, Sala Miah, a 51-year-old Bangladeshi GrubHub delivery worker, was slashed in the face, stabbed to death, and robbed of his bicycle at the same park. Joseph Sandoval was arrested that same month for Miah’s murder. 

The city of New York "was aware of and failed to control significant public safety conditions in Sara D. Roosevelt Park prior to and on the night of February 13, 2022, including but not limited to violent crime such as the October 16, 2021, stabbing death of Sala Miah, a delivery worker, just outside Sara D. Roosevelt Park at Chrystie Street and Hester Street, two blocks from Ms. Lee’s apartment, and inadequate fencing and nighttime lighting," says the filing obtained by Fox News Digital. 

"The dangerous conditions in Sara D. Roosevelt Park, a public park owned, maintained and operated by Defendant CITY OF NEW YORK, were known to Defendant CITY OF NEW YORK and contributed to the harm and suffering of Plaintiff and the interference with Plaintiff’s private interests," the lawsuit says. "By failing to control dangerous conditions in Sara D. Roosevelt Park, Defendant intentionally, recklessly, and negligently created a nuisance which substantially and unreasonably interfered with Plaintiff’s rights and private interests." 

On the night she was killed, Lee traveled home in a taxi and entered her apartment building at approximately 4:20 a.m. Nash snuck into the building behind her, police said. 

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The lawsuit says Lee struggled with her attacker and screamed for help for at least five minutes, during which time her neighbors called 911 and reported the ongoing attack. 

Two NYPD officers were about three blocks away from the apartment at the time, responded to the 911 and heard Lee screaming for help. Yet, the lawsuit says, those two officers "failed to gain entry to Ms. Lee’s apartment or render any police assistance or medical aid to Ms. Lee at that time." 

The filing claims that Lee’s screaming abruptly stopped and the officers are believed to have spoken with Nash through the closed door of Lee’s apartment. 

"Despite the proximity of the NYPD’s 5th Precinct to Ms. Lee’s apartment," the filing asserts, another seven officers failed to arrive at the apartment until approximately 5:30 a.m. – more than hour after neighbors called 911 and the first two officers heard Lee screaming to them for help. 

"At approximately 5:40 A.M., one hour and twenty minutes after Ms. Lee was first attacked, members of the NYPD Emergency Services Unit forced entry into Ms. Lee’s apartment," the lawsuit says. NYPD office found Lee inside the apartment, "where she had been fatally stabbed more than forty times in the neck and torso." 

She was pronounced dead at her home at approximately 5:55 a.m. At the time, Nash had four pending cases from prior arrest in New York City for subway crime.

Lee’s aunt, Boksun Lee, is suing as the administrator of her niece’s estate. Lee is also survived by her parents, Jung Lee and Sungkon Lee, who are the legal distributees of her estate.