Anti-Chavez marchers are attacked

Gunmen opened fire on students returning from a march in Caracas, Venezuela, in which 80,000 people denounced President Hugo Chavez’s attempts to expand his power. At least eight people were injured, including one by gunfire, officials said.

At least four gunmen -- their faces covered by ski masks or T-shirts -- fired handguns at the crowd. Terrified students ran through the campus as ambulances arrived.

National guard troops gathered outside Central University of Venezuela. The law bars them from entering the campus, but Luis Acuna, education minister, said they could be called in if the university requests them.

Venezuelans will consider constitutional changes expanding Chavez’s power in December.