ROME, Oct 1 (Reuters) - Italian unions called a general strike for Friday in solidarity with the international aid flotilla for Gaza, while protests sprang up in a number of cities late on Wednesday after reports that the ships had been intercepted by military personnel.

In the southern city of Naples, demonstrators got into the main railway station and halted train traffic, while police surrounded the Termini railway station in Rome after protesters gathered close to entrances.

“The aggression against civilian ships that were carrying Italian citizens is an extremely serious matter,” the CGIL union said, calling the strike which other smaller unions said they would join.

In the northwestern city of Genoa, the USB announced that it intended to block the port and called on all protesters to gather at 10 p.m. (2000 GMT) at one of the main entrances.