BOSTON, Oct. 28 (UPI) -- Thousands of boisterous Boston Red Sox fans held a huge street party into the early hours, celebrating the team's World Series victory in St. Louis.
Boston police said they made 21 arrests and reported 30 people were treated for minor injuries as part of the revelry, following the Red Sox 3-0 victory over the St. Louis Cardinals.
It was Boston's first championship in 86 years.
Police in riot gear, some mounted on horseback, some with dogs and others in an armored vehicle had closed streets and took up defensive lines as the game unfolded, the Boston Herald said.
At 11:37 p.m., a supervisor warned over the police radio, "All units, all units, two outs, be prepared."
On the third out, the city erupted into a cacophony of shouting, honking horns and fireworks.
In Amherst, University of Massachusetts police made about 25 arrests during a raucous celebration, as more than 1,000 people gathered outside a sports arena.
Boston Mayor Thomas Menino has yet to say when the team will be honored with a homecoming parade. Spokesman Seth Gitell said the parade would most likely be held Friday but could also be put off until Saturday.