Thai police said Monday they have sought Malaysia's cooperation in investigating last week's blasts in southern Thailand that killed four Thais and injured more than 30 people, including foreign tourists.
National Police Chief Chakthip Chaichinda told a press conference that Thai police asked their Malaysian counterparts for help after finding that one of the mobile phones used in the blasts does not come from Thailand.
His remarks came after Malaysia's Bernama news agency reported that a mobile phone recovered from the debris of an explosion in Phuket, one of 10 blasts that occurred between Thursday and Friday in five southern provinces, has a Malaysian Communications and Multimedia Commission serial number still visible on it.