(NBC NEWS) ROME, Italy – James Gandolfini’s teenage son called for help after discovering his father collapsed in a bathroom, according to the manager of the Italian hotel where the “The Sopranos” star was staying. The Emmy-winning actor was later pronounced dead aged 51.

Gandolfini, who rose to fame as mob boss Tony Soprano on the hit HBO show, was still alive when the ambulance arrived, according to Antonio D’amore, who runs the Hotel Boscolo in Rome.

Gandolfini suffered a suspected heart attack in the bathroom of his hotel room at about 10 p.m. local (4 p.m. ET) Wednesday, according to D’amore.

He said Gandolfini’s son, Michael, was with him in the room and called for help. Hotel staff rushed to the room and found the actor on the bathroom floor, D’amore said.

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