Coast Guard officials and crews from Charleston Marine Services continue to remove oil and other hazardous materials from the 52-foot motor yacht Oyob, which sank Sunday in the Cooper River near Charleston Harbor.

The motor yacht carried an estimated 55 gallons of fuel when it sank, according to Coast Guard officials. They expect to finish clean up by this weekend.

Coast Guard officials standing watch received a call from the Naval Weapons Station shortly after 9 p.m. Sunday describing a sheen on the river. The Coast Guard dispatched pollution responders who determined that the spill came from the submerged vessel.

The maritime public can monitor VHF-Channel 16 for continued updates.