Two crew seized from a Korean heavy-lift ship off the Philippines have been released after nearly three months.

Korean master Park Chul Hong and Filipino colleague Glenn Alindajao were taken from the 18,500-dwt Dongbang Giant No. 2 (built 2008) by Abu Sayyaf militants in October.

Local media said they returned home on Sunday after being set free on Saturday.

Their health is said to be okay, but check-ups will be carried out.

The release was negotiated with the help of rebels belonging to the Moro National Liberation Front, a Philippine army spokesman said.

Ten militants had boarded the vessel during a voyage from Korea to Australia.

A Philippines government spokesman said the state had paid no ransom.

But the shipowner, Korea's Dong Bang Transport, had been in negotiations with the group, the Korea Herald reported.