Watch: Black Lives Matter Mural Outside Trump Tower Vandalized With Red Paint

The Black Lives Matter mural in front of Trump Tower in Manhattan, N.Y., has been vandalized with red paint, authorities said.

In a video, an unidentified man wearing a mask was seen approaching the mural and splashing the liquid out of a can so as to stain the letter “V” in “Lives” before running off. The paint was further splattered across the mural by passing traffic on Fifth Avenue.

The incident was caught on camera by a Twitter user Oscar Vela, who shared in on the social media platform.

"I was a little speechless at first cause I couldn't believe that was happening in front of me," Vela told CNN. "I yelled for his name and he ran away. Sad to see this happen in NYC."

Vela can be overheard asking the man’s name in the video as he escapes.

A criminal mischief complaint has been launched against the vandal who is being searched by New York Police Department detectives, USA Today reported. Police implored anyone with information to contact them.

New York City Mayor Bill de Blasio had allowed for the mural to be painted on a stretch of Fifth Avenue, right outside of Trump Tower. President Donald Trump had opposed to the mural being painted on Fifth Avenue, calling it a "symbol of hate," and criticizing Blasio for "denigrating" the area.

Blasio said in response that they would not be "denigrating the luxury of Fifth Avenue," but uplift it by painting the mural. On completion of the project, he shared a top-view of the mural on Twitter saying, "5th Avenue has never looked better."

Blasio took to Twitter to declare the mural has been repainted by a Department of Transportation crew. “nice try,” he said, addressing the man who vandalized it. “@NYC_DOT has already fixed it.”

"The #BlackLivesMatter movement is more than words, and it can’t be undone," Blasio added.

The vandalism came on the heels of a weekend of altercations between pro-police protesters and the supporters of the Black Lives Matter movement. Last week, violence broke out in Brooklyn as a scuffle ensued between demonstrators and pro-police protesters who were heard shouting “back the blue” in support of the police.