BUTUAN CITY, Jan. 11 -- The Philippine Coast Guard (PCG) on Sunday said no oil spill was observed off the coast of Burgos town in Siargao Island, Surigao del Norte, where a Philippine-flagged motor tanker ran aground.

The Burgos local government, through its Municipal Disaster Risk Reduction and Management Office, reported the grounded vessel on Sunday morning, prompting the immediate deployment of PCG personnel in Siargao to assess the situation.

The vessel was identified as MT Cheng Xian Feng 168.

"Technical assessment and verification are ongoing, including the determination of possible hull breach, to ensure marine environmental protection," PCG spokesperson Capt. Noemie Cayabyab said in a statement on Sunday.

Authorities also con...