Douglas lifeboat went to the aid of two vessels in an hour on Saturday evening.
The Sir William Hillary was launched at 8.20pm when a fishing vessel reported problems with its engine and gearbox just off Port Soderick.
But as she towed the stricken vessel and two crew back to the capital, a member of the public contacted the RNLI about a rubber dinghy containing two people in Port Soderick bay.
But the boat’s occupants were fine and the lifeboat crew resumed towing the fishing vessel back to Douglas harbour.
Fundraiser for TT rider Maria Costello surpasses £220k
Warmer than average May for Island
Manx BirdLife awarded funding for new warden
Increased DfE support 'to tackle rising costs and global pressures'