A 6.1-magnitude earthquake struck off the coast of Italy's southern Calabria region early Tuesday, Italy's National Institute of Geophysics and Volcanology reported.  The quake occurred at 00:12 a.m. local time Tuesday (2212 GMT on Monday), with its epicenter located at a depth of about 250 kilometers, the institute said.

The epicenter was located in the sea off the coast of the southern Calabria region. Tremors were felt in several southern Italian regions, including Calabria, Sicily, Campania and Puglia, Xinhua news agency reported quoting local media. No casualties or major damage have been reported so far. Local authorities are monitoring the situation.