The Philippines Department of Justice (DOJ) has claimed that Malaysia is refusing to cooperate with its investigations into the escape of former mayor Alice Guo, who is believed to have travelled to Malaysia as part of her plans to flee the Philippines.

Philippines’ Justice Secretary Jesus Crispin Remulla said Malaysian authorities declined to provide requested critical information, such as flight records and details of the flight Guo was said to have been on.

“Malaysia is supposed to...