Former first lady Nancy Reagan, escorted by police Chief Daryl Gates, watched narcotics officers storm a South Los Angeles cocaine rock house Thursday night, officials said.

The officers forced entry into the house south of downtown about 10 p.m. with Reagan and Gates watching nearby, Los Angeles Police Cmdr. William Booth said."We did not have to use the battering ram, but we did force entry into the rock house," Booth said.

It was not immediately known how many people inside were arrested or how much cocaine was seized.

"The first lady had shown an interest in observing something like this, so we extended an invitation and she accepted," Booth said.

The Reagans live in Bel Air, about 15 miles north of the depressed South Los Angeles neighborhood where the raid occurred.