SAN FRANCISCO (AP) _ Demonstrators scuffled over U.S. policy in Central America, started a bonfire and scattered leaflets at a hotel as President Bush spoke at a fund- raiser. At least five people were arrested, police said.

Later, police fired three shots in a chase of a stolen car a half-mile from the president's motorcade, police said. Bush, traveling to a waiting Air Force One at San Francisco Airport, was unaware of the incident, authorities said.

Two youths were arrested for investigation of drunken driving, possession of a stolen vehicle and auto theft, police said. Police had opened fire after they refused to pull over, said Highway Patrol Sgt. Fred Bowe. No one was hurt.

''It was bad planning on (their) part. They definitely could have picked a better time and place,'' Bowe said.

About 1,000 people had gathered outside the St. Francis Hotel to cheer Bush or protest his visit on behalf of Sen. Pete Wilson's gubernatorial campaign.

Riot police broke up fistfights and shoving matches between protesters favoring Nicaragua'a lame-duck Sandinista government and those cheering the opposition party that won Sunday's election.

Two dozen torch-bearing protesters, some wearing bandanas on their faces, set a bonfire, cheering wildly as the flames crept to within two feet of a TV van. Police escorted firefighters in to put out the flames.

Several protesters got into the hotel and hung a pro-Sandinista banner from a window. They hurled about 300 leaflets into the lobby as firecrackers popped outside.