updated 06/20/2013 AT 8:00 AM ET
•originally published 06/20/2013 AT 8:50 AM ET
As tributes continue to pour in for James Gandolfini, the Sopranos star who died in Rome Wednesday night, details are also emerging about his final moments.
The actor’s son Michael, 13, reportedly found his father alive but in distress in the bathroom of their Rome hotel room after the actor suffered an apparent heart attack.
NBC News reports that the teen called for help as his father lay alive but stricken in his room at the Hotel Boscolo around 10 p.m., Antonio D’amore, the hotel’s manager, said.
Hotel employees attempted to resuscitate Gandolfini, 51, as they waited for emergency crews to arrive. The actor was still alive when his ambulance arrived at the hospital, but was later pronounced dead at Policlinico Umberto I hospital, located about three minutes away from the hotel, NBC said.