"The Irish boat has a problem with its propeller, we don't know yet how serious it is, but we believe it may have been sabotaged," said flotilla coordinator Claude Leostic.
And once again, they are blaming Israel.
This is one of a series of setbacks that has plagued the flotlla in recent weeks. On Monday reports emerged that the propeller on the "Juliano", belonging to Swedish activists, had been cut.
Fewer than 300 "activists" will be taking part in the running of the Gaza blockade – much less than the 1,500 that had been widely publicized.
The Irish Boat to Gaza and crew, during happier times