Police imposed a curfew in the northern Indian city that is home to the Taj Mahal and advised tourists and residents to stay indoors after angry mobs set fire to 20 vehicles and blocked roads, officials said. All schools and colleges in the city have also been closed for the next three days, local government spokesman J.N. Chamber told reporters, adding that the rioting _ sparked by the deaths of four men hit by a truck _ was now under control. Ten people _ six police and four firefighters _ were injured and one person was shot dead in the rioting, he was quoted as saying by the Associated Press. Angry resident in the Nai Mandi area of the city went «berserk after a speeding truck killed four people,» said Vikram Singh, the director-general of police in Lucknow, the state capital of Uttar Pradesh. The victims, all Muslims, were walking home after a religious festival, Singh said. The mob torched 20 vehicles including 10 trucks and blocked the highway connecting Agra with New Delhi, about 210 kilometers (130 miles) to the northwest, Singh said. The white-marble Taj Mahal is a monument built by the Mogul Emperor Shah Jahan between 1632 and 1654 for his favorite wife, Mumtaz Mahal.