Two dozen Venezuelans shouting pro-government slogans hurled rocks and bottles into a crowd of more than 2,000 opposition protesters who marched Saturday through Caracas to demand a more independent electoral council. Some protesters fled as rocks and bottles landed near them. Others continued their march until reaching a police barricade a block away from the electoral council. No injuries were reported in one of the largest opposition rallies in recent months. Groups opposed to President Hugo Chavez's leftist government held the protest a week before Aug. 7 municipal elections, saying they are concerned about possible irregularities ahead of that vote as well as congressional elections set for December.