At least 1,000 taxi drivers in Hangzhou, Zhejiang province, went on strike on Monday, in a demonstration over increasing fuel costs and traffic problems, Reuters reported, citing state media. China raised retail diesel and gasoline prices by 5-5.5% in early April, reaching record highs. Hangzhou drivers claim it is becoming more difficult to make money, as they have to submit the bulk of their earnings to taxi companies. The protest follows a truck driver strike at a Shanghai container port in May, which was sparked by inflation concerns.