MANILA — Dozens of protesters were hurt on Wednesday after a Philippine police officer used a van to ram into them during a demonstration against the United States in the capital.

Television footage showed the van plowing into a throng of protesters outside the United States Embassy in Manila as police officers in riot gear roughed up a group of mostly student activists.

The vehicle drove wildly forward and backward, knocking down several protesters. A woman was seen being flung into the air before slamming into the ground. She was then run over, but she was later seen standing and limping away.

About 1,000 activists had gathered to demand an end to the United States presence in its former colony; the two countries have been allies since the 1950s. The new Philippine president, Rodrigo Duterte, has denounced President Obama, Pope Francis, the United Nations and the European Union for criticizing his war on drugs, which has left hundreds of suspected drug dealers and addicts dead.