LUCENA CITY -- Mayor Alexis San Luis of Pili, Camarines Sur died while undergoing treatment in a hospital here early Thursday evening, after sustaining serious injuries in a road accident in Gumaca town Wednesday afternoon, police said Friday.

Inspector Giovanni Caliao, Gumaca police chief, said San Luis, along with his wife and five others, were traveling along the Maharlika Highway on their way home, aboard a Ford Everest, when their vehicle collided with a Manila-bound passenger bus in the village of Rosario.

"It was raining hard. The bus overtook another vehicle and it was too late for the driver to stop his vehicle. The tires skidded and hit the driver side of the mayor's vehicle. The impact was strong," Caliao said over the phone.

After receiving emergency treatment in a local hospital in Gumaca, the police official said San Luis, his wife and two other injured passengers were transferred to another hospital in this city.

Police said San Luis died at around 6 p.m. Thursday.