Three Indonesians were believed to have been kidnapped by five armed men off Lahad Datu late Saturday (July 9), the latest in a spree of abductions off the coast of Sabah.
It is believed that the Indonesians were on a tugboat when the incident occurred at about 11.40pm.
Sabah police commissioner Datuk Abdul Rashid Harun said a press conference would be held in Lahad Datu on Sunday afternoon, without elaborating further.
On June 20, seven Indonesian seamen were taken hostage in the Sulu Sea, allegedly by Abu Sayyaf militants.
The Abu Sayyaf, notorious for kidnapping people and demanding millions of dollars in ransom for their return, in April abducted a group of Malaysian sailors in the same waters, releasing them last month.
The militants abducted 10 Indonesian sailors on March 29, and another four on April 15. All were also released last month.
But the group has in recent months executed two Western hostages abducted from a tourist resort in the southern Philippines after ransom demands were not met.