Gunmen seized four Malaysian crew of a tugboat off the coast of the eastern state of Sabah, a week after a similar attack on a Taiwanese tugboat in the southern Philippines, media reported on Sunday.
The four were taken at gunpoint on Friday evening and brought by speed boat to the southern Philippines, the Philippine Daily Inquirer said, quoting an unnamed military official. Three other crew were left behind.
The gunmen, suspected to be Abu Sayyaf militants, also took laptops, mobile phones and unspecified amounts of cash. The tugboat returned to Sabah when the gunmen left.
"We confirm receiving reports of this incident," military spokesman Major Filemon Tan told reporters. "We have coordinated with our Malaysian counterparts."
It was the second attack in a week on tugboats in the waters that border of Indonesia, Malaysia and the Philippines. Ten Indonesians were abducted when a Taiwanese tugboat was intercepted in the southern Philippines.
The Abu Sayyaf known for kidnappings, beheadings, bombings, and extortion activities has declared alliance to the terrorist group DAESH in a video published in 2014.