The World - News from Aug. 16, 1989

At least 20 people were injured in a clash between supporters of rival political parties in the central Mexican city of Morelia, police said. A spokesman said three of the 20 were seriously hurt in the clash between followers of the ruling Institutional Revolutionary Party and the opposition center-left Party of the Democratic Revolution. The clash took place as an electoral college began meeting to ratify the results of local elections held July 2 in Michoacan state, of which Morelia is the capital. The opposition disputes official results given so far, which indicate the ruling party won with 12 of 18 electoral districts.