“Police are investigating the motive. So far it’s a mass shooting,” Worapat Sukthai, deputy police chief of Bangkok’s Bang Sue district where the incident took place, told AFP.

He said the suspect took his own life after the shooting and police were working to identify him, as well as investigating “for any possible link” to the current border clashes between Thailand and Cambodia.

The attack took place at Or Tor Kor Market, a short distance from Chatuchak market which is a major tourist destination in Bangkok and throngs with visitors every weekend.

Mass shootings are not uncommon in Thailand, where firearms can be obtained relatively easily due to lax gun control enforcement.