Update: Philadelphia police said the wedding fight was not only between guests from the same wedding party but also between guests from two separate wedding parties. Both feuds started in the hotel bar, police said.

"There was an issue with a lot of alcohol fueling the fight," said police spokesman Lt. Ray Evers.

Two summary citations for disorderly conduct were issued to men in their late 20s, Evers said. A third man - the one whom police hit with a baton in the video - remains behind bars. Police are deciding whether to charge him with assault on an officer and Evers said, "It's definitely leaning that way."

A man died of heart attack after an all-out brawl broke out at a Society Hill wedding early this morning, and part of the melee was caught on video.

Police had little information on the wedding fight, which occurred at the Society Hill Sheraton on Second and Walnut streets, but a video posted by a hotel guest to YouTube this morning shows a chaotic scene with guests fighting police and a woman letting out blood-curdling screams.

At least seven police officers can be seen on the video, one of whom repeatedly uses his baton to strike a wedding guest.

The person who took the video, who says that it's his birthday and he wishes the wedding guests would just go to bed, at one point asks "Did they just deck the bride?"

Police said a 57-year-old guest, reported to be the uncle of the bride, was found unconscious outside of the wedding at 2:06 a.m. He was taken to Jefferson University Hospital, where he was pronounced dead of a heart attack at 2:51 a.m.