Venezuelan authorities have reportedly arrested more than 2,400 people who protested the outcome of last month's presidential election.

Venezuela's electoral officials declared President Nicolas Maduro the winner of the July 28 vote.

Supporters of opposition parties rallied in the capital Caracas on Wednesday, exactly one month after the election. They claim that an opposition candidate, Edmundo Gonzalez, won with 67 percent of the votes.

The UN Office for the Coordination of Humanitarian Affairs said Venezuelan authorities have detained more than 2,400 people since the election. Opposition parties said they include over 150 children.

Countries around Venezuela along with the United States, the European Union and international organizations have called on Venezuela to publish detailed election results or review vote tallies.

But last week, Venezuela's Supreme Court confirmed the electoral authority's announcement.

On Wednesday, prosecutors requested Gonzalez to testify in court about a website where the opposition camp posted its vote tallies of the presidential election.

Maduro has already named the members of his new Cabinet. It appears unlikely that he will change his heavy-handed approach to the opposition protests.