Bangkok , Thailand ( CNN ) -- Three bomb blasts rocked the southern Thai border city of Sungai Kolok , leaving at least four people dead and 118 wounded , officials said . The explosions happened Friday night in Thailand 's Narathiwart Province , according to the country 's Ministry of Public Health . Authorities believe the bombs were planted in a car and motorcycle , and detonated with some form of coordination , according to military spokesman Col. Prinya Chaidilok . He said the incident was carried out by `` drug gangs '' retaliating after a narcotics crackdown by authorities last week . Sungai Kolok , which borders Malaysia in southern Thailand , is a popular tourist destination for Thais and Malaysians .
Bomb blasts hit Sungai KolokAuthorities say the blasts were drug related . The explosions occurred at a checkpoint on Jalan Ampang in Kuala Lumpur and injured two people including one police officer.