Two fans died and a police officer is in a coma after celebrations for Paris-Saint Germain's historic Champions League victory, European soccer's biggest prize, authorities say.

Wild celebrations erupted across the French capital on Saturday after Paris St Germain crushed Italian opponents Inter Milan to win the Champions League for the first time, although skirmishes with police later threatened to spoil the party.

Hundreds were detained after soccer fans’ jubilation gave way to violence in parts of the French capital.