A California inmate serving time for murder attempted to stab a sheriff’s deputy and a fellow inmate with a makeshift knife, prompting a chaotic brawl in the prison that was caught on video. 

The violence unfolded at the West Valley Detention Center in Rancho Cucamango around 2:45 p.m., the San Bernardino County Sheriff’s Department (SBSD) said in a news release.  

Christopher Lommie Jackson, 25, who’s been in custody since 2019, armed himself with a jail-made metal knife and attempted to stab another inmate, sheriff’s deputies said. 

When deputies arrived to break up the altercation, Jackson attempted to stab a deputy and knock him to the ground, prompting more deputies to intervene to stop the assault. The violence spilled out into the corridor as deputies pinned Jackson down to stop him. 

TWO POLICE OFFICERS, INCLUDING NYPD, SHOT, SUSPECT KILLED WHILE EXCHANGING GUNFIRE AT NEW JERSEY HOTEL

The deputy who was attacked sustained "moderate injuries to his face and was treated and released from a local hospital," SBSD said. 

"Such violent behavior poses a serious threat to the safety and security of our staff and inmate populations," Sheriff Shannon Dicus said in a statement. "Our deputies work tirelessly to maintain order and provide a secure environment within our correctional facilities. We will pursue the maximum legal consequences for those who carry out attacks in our correctional facilities."

SBSD said Jackson has had multiple prior arrests for violent offenses in San Bernardino County. 

Early on Thursday, a South Carolina corrections officer was hospitalized after being stabbed in the head by an inmate at the Broad River Correctional Institute in Columbia. 

Authorities in Greece closed down the Acropolis in Athens during the afternoon on Thursday for a second day as the country swelters under unseasonably high temperatures.

The Culture Ministry said the hilltop citadel, which is Greece's most popular ancient site, was closed from midday to 5 p.m. local time because of the heat.

All other archaeological sites in the Greek capital were also shut during the same hours. People who had booked visits for that period could use their tickets later in the day until the sites close at 8 p.m., the ministry said.

7 WAYS TO STAY SAFE IN THIS SUMMER’S SCORCHING HEAT

Temperatures exceeded 104 degrees Fahrenheit on Thursday in much of central and southern Greece, including greater Athens, the Cyclades and Crete.

Officials are on heightened alert for wildfires, which plague Greece every summer.

The minister responsible for civil protection, Vassilis Kikilias, said Thursday posed a particular wildfire risk due to the combination of high temperatures and winds.

"The early start of the heat waves, combined with the dry winter, has led to a very difficult fire season," he said.

The fire service also warned of a very high wildfire threat on Friday.

Authorities in Athens are providing air-conditioned areas to the public and have issued fans to secondary schools where end-of-year and university entrance exams are being held.

Temperatures are expected to drop on Friday and Saturday.