Repair and utility crews were cleaning up and reconnecting electricity to some 200,000 people Friday after strong winds in southern California caused widespread damage and left hundreds of thousands of people without power. Gusts of up to 220 kilometres per hour tore up trees, damaged buildings and cut power to at least 340,000 homes and businesses in Los Angeles and Las Vegas, CNN reported late Thursday. By Friday morning some 200,000 customers remained without power, DPA reported. Los Angeles County declared a state of emergency and Los Angeles International Airport suffered partial power outages, causing many flights to be delayed or cancelled.