LOS ANGELES — In a massive show of force, 1,400 police officers, some in riot gear, stormed the Occupy Los Angeles camp early today, driving protesters from the park and arresting more than 200 who defied orders to leave. Similar raids in Philadelphia led to 50 arrests, but the scene in both cities was relatively peaceful.

Police in Los Angeles and Philadelphia moved in on Occupy Wall Street encampments under darkness today in an effort to clear out some of the longest-lasting protest sites since crackdowns ended similar occupations across the country.

Los Angeles Police Chief Charlie Beck praised the officers and the protesters for their restraint and the peaceful way the eviction was carried out.

Officers flooded down the steps of City Hall just after midnight and started dismantling the two-month-old camp two days after a deadline passed for campers to leave the park. Officers in helmets and wielding batons and guns with rubber bullets converged on the park from all directions with military precision and began making arrests after several orders were given to leave.

There were no injuries and no drugs or weapons were found during a search of the emptied camp that was strewn with garbage after the raid. City workers put up concrete barriers to wall off the park while it’s restored.

The raid in Los Angeles came after demonstrators with the movement in Philadelphia marched through the streets after being evicted from their site. About 40 protesters were arrested after refusing to clear a street several blocks northeast of City Hall, Philadelphia Police Commissioner Charles Ramsey said. They were lined up in cuffs and loaded on to buses by officers.

Los Angeles Mayor Antonio Villaraigosa raised public safety and health concerns in announcing plans for the eviction last week, while Philadelphia officials said protesters must clear their site to make room for a $50 million renovation project.

Defiant Los Angeles campers who were chanting slogans as the officers surrounded the park, booed when an unlawful assembly was declared, paving the way for officers to begin arresting those who didn’t leave.