Police in Washington are asking for the public's help after they say surveillance video captured a brutal attack on a 63-year-old man who was robbed of $1.

D.C. police say a man in a bright red shirt attacked the man Sunday evening in southeast Washington.

In the video, an unidentified person gets into an argument with the older man before hitting the victim in the face. The victim immediately falls to the ground and remains motionless for the rest of the video.

According to the police report, the victim suffered a severe laceration and was robbed of $1.

After the attack, a number of people looked and walked past the victim and did not help him.

Police say they hope someone recognizes the person in the video and calls authorities.