Three women were killed and a fourth was injured Monday after a school bus lost control and hit pedestrians in Cadiz in southern Spain, emergency services said.

The bus "ran over several people who were on the pavement," Cadiz firefighters said on social media network X, formerly called Twitter, adding no one on the bus was injured.

The injured person was taken to hospital, the regional government of Andalusia said in a statement.

Videos posted on social media showed firefighters dragging a palm tree off the top of the bus which came to a stop outside of a department store.

The front windows of the bus were completely shattered.

Officials did not say why the bus was out of control, but Spanish media said the vehicle appeared to have suffered a problem with its breaks.

The head of the regional government of Andalusia, Juan Manuel Moreno, said he was "overwhelmed" by the news of the "unfortunate accident" in Cadiz.