A whale spotted swimming in the Liffey this week was found dead this morning in Dublin Bay.
Experts say it was a juvenile, fin whale, 7.62m (25ft) long, and in bad health when it was seen blowing water earlier this week.
Fin whales are occasionally recorded in the Irish Sea but most currently are off the south coast feeding on seasonally abundant herring and sprat.
Experts also said its unclear whether this whale strayed from its normal habitat or whether it was disorientated and sick.
It was first seen close to the shoreline on Tuesday by people out walking along Sutton Beach.
The Irish Whale and Dolphin Group had described the sighting of a whale blowing in Dublin as “really unusual”.
“IWDG have been informed the whale is dead,” the group said in a statement.
“It was seen lying alongside the Ulysses dead this morning in Dublin Port.
“It is being towed out to sea by Dublin port now to clear the shipping lanes.
“We hope to get some photos of it later.
“Great shame, but was always the most likely prognosis.”
Dublin Port Company is now towing the whale’s remains out to sea to dispose of them.