Rescuers searching for two missing crewmen from an oil tanker which exploded and caught fire off Lamma on Tuesday say their work has been hampered by low visibility and widespread damage inside the vessel.
One person was killed and four others injured when blasts rocked the tanker while it was being refuelled. More than 20 crew members were rescued from the sea.
For a second day, firefighters and divers boarded the listing boat to look for the two Vietnamese nationals still missing.
They searched the engine room and some of the boat's cabins.
But a large amount of debris hindered their efforts, as did strong waves.
Despite the difficulties, the Fire Services Department said it was hoping to complete the search of the vessel's cabins on Thursday.