Seven more police officers were taken off street duty Thursday as investigators look into the videotaped police beating of three shooting suspects during a traffic stop.

Thirteen of the estimated 15 officers on hand during the Monday incident have been taken off the streets as investigators pore over the television news footage, Police Commissioner Charles Ramsey told a news conference Thursday.

The video shows officers kicking, punching and beating the men, who are all black. On his syndicated radio show Thursday, the Rev. Al Sharpton, compared it with the videotaped 1991 beating of black motorist Rodney King by a group of white Los Angeles police officers.

"I've not ...