One of the two tugs attached to Hoegh Osaka moved from her position on Saturday afternoon and collided with the listing car carrier, UK Maritime and Coastguard Agency (MCA) informed.
There were no injuries to personnel, but the tug received some damage and it was replaced by another tug.
No pollution occurred during this incident.
Bad weather conditions prevented any activity on the vessel other than to connect the third tug on Saturday.
“The main concern at the moment is the weather and the forecast for continuing high winds in the coming week. Plans are being refined to meet the challenges this presents,” MCA said.
As informed, the salvors now intend to start ballasting work before pumping the 3000t of water out of the vessel.
They have managed to board the ship today and will ensure the pump is working, but they will also look at the ballast system, according to the Coastguard.
The vessel remains at anchor on the Alpha Anchorage.