A dolphin has been spotted swimming in the river Liffey in Dublin's city centre.

The Dublin Society for Prevention of Cruelty to Animals (DSPCA) said many people have been in contact with them since about the sighting.

Experts say it's not uncommon for a dolphin to swim into rivers during the current weather, as the storms might have affected the animal's sonar, stirring up metal and other particles sitting on the river bed.