Police have arrested and charged a 22-year-old woman who works for the city with attempted murder, according to the NYPD.

Diamond Matthews, an employee of the New York City Office of Technology and Innovation, which is best known for running the 311 system, was arrested in East Harlem on Tuesday at 9 p.m., while she was off duty, the department said in a release Thursday.

According to a criminal complaint the Manhattan District Attorney's Office shared with Gothamist, Matthews was recorded on video repeatedly punching an unnamed person known to the DA's office in the head, while a second alleged assailant repeatedly stabbed the person in the torso.

"I got into an argument with one of the guys doing laundry and I got my dad to come rescue me," Matthews said, per the complaint. "We started fighting and a knife was pulled out but I couldn't see who pulled it out. The other guy ended up getting stabbed."

She was arraigned Wednesday at Manhattan Criminal Court, where Judge Pamela Goldsmith set bail at $15,000 cash and $10,000 bond. Court records show Matthews pleaded not guilty and made bail on charges of attempted murder in the second degree and attempted assault in the first degree.

Neither Matthews nor her lawyer, Bradley Foster of the Legal Aid Society, immediately responded to a request for comment early Thursday morning.

Second city employee arrested, for attempted assault

Police also said they arrested 27-year-old Ashley Anderson, a school safety agent with the NYPD, on charges of attempted assault, menacing, harassment and criminal weapons possession, on Wednesday night while she was off duty.

Anderson was allegedly involved in a verbal dispute with an adult relative and pulled out a sharp object that may have been a knife, according to the NYPD.

No one was injured in the incident, and Anderson was arrested at the 75th precinct station house in East New York shortly before 10 p.m., a police spokesperson said.

She had previously worked at a school in Brooklyn, but the spokesperson could not specify which one.

Attorney information for Anderson was not immediately available.

This story has been updated with new information from the Manhattan District Attorney's Office.