India, Feb. 11 -- A gunman opened fire at a school in southern Thailand, taking students and teachers into custody and injuring several others, multiple reports said on Wednesday.

The gunman, an 18-year-old man, was later detained and all the hostages were freed, Reuters reported.

The incident unfolded after the gunman opened fired shots at Patongprathankiriwat School at Songkhla Province in Hat Yai district in southern Thailand, a police official said.

Several videos surfaced on social media showing students and others fleeing the active shooting area. The people were seen rushing and taking shelter.

"The perpetrator has been captured," Deputy Superintendent Wichian Soboon said.

At least three people are said to have been injured in...