Covina Standoff
A knife-wielding man was engaged in a standoff with police after taking his daughter hostage in his car on Nov.26, 2017 in Covina, California. In this photo, police cars sit outside Village Shalom, the senior living center in Leawood, Kansas, April 13, 2014. Getty Images

UPDATE 1.45. a.m. EST — In a second tweet, Montanez posted a video that showed grainy footage of the officer with the carrier. He also reported that the baby seemed to be safe but there was no update on the suspect's condition.

UPDATE 1.40. a.m EST — Rick Montanez‏, a reporter with NBC affiliate KNBC, said on Twitter at 1:38 a.m. EST that several "flash bangs and pops" were heard after the police moved in. He also added that an officer was seen running off with a baby carrier.

Original Story:

A man believed to be armed was reported to be holding his child hostage in his car and engaging in a standoff with police in Covina, California, officials said Sunday.

According to San Gabriel Valley Tribune, the police have been in a standoff for the situation with the man for more than three hours Sunday after the incident began about 5:45 p.m. EST.

Officials from the Covina Special Response Team said the suspect was a 22-year-old male and the child was his 7-month-old daughter.

The Tribune report quoted officials saying patrol officers noticed a man and a woman arguing in a white Toyota car that was parked in the driveway in front of Kahler Russel Park.

The officers requested the couple to get out of the car. While the woman agreed, the man refused and brandished a pocket knife at the police even as their infant daughter was in the car with them.

When the man was shocked with a Taser, he managed to pull out the darts from his body, Covina police Sgt. Ray Marquez said.

As the standoff continued into Sunday night, officials are trying to convince the man to release the baby and surrender, as of 9.30 p.m. EST.

This is a developing story.