Fans in Fenway Park celebrated after the Red Sox took the lead in the fourth inning.

Fans cheered as the Red Sox built an early lead.

Boston University police officers cheered after the Red Sox scored.

Fans celebrated during the game.

A fan held a sign during the game.

A young fan at Fenway looked on during the eighth inning.

Fans cheered on the Red Sox at the Forum restaurant on Boylston Street.

Fans at Latino Restaurant in Jamaica Plain celebrated the win.

Fans at White Horse Tavern in Allston celebrated as the Red Sox clinched the World Series.

Anticipating rowdiness, police started to clear the crowds from the Fenway Park area during the 5th inning.

Just under two miles away from Fenway In Allston, Boston Police kept watch as fans left bars.

Fans celebrated by jumping on a moving cab on Massachusetts Avenue and Boylston Street.

A Boston Red Sox fan climbed into the stadium after fans outside stormed Gate B and ran into the ballpark.

Sox fans outside Fenway Park stormed Gate B and ran into the ballpark.

Police officers in riot gear moved crowds back after celebrations got out of control outside of Fenway Park.

Fans celebrate on Boylston Street, atop the finish line of the Boston Marathon.

Fans rejoiced at the spot where two bombs exploded in April, killing three people and injuring more than 260.

Fans celebrated under the Citgo sign in Kenmore Square.

Celebrators hung out of car windows on Boylston Street.

A crowd gathered on the steps of a building in Kenmore Square.

People climbed on an overturned car on Charlesgate Street.

Others climbed to the top of traffic lights outside of Fenway Park.

A fan carried a sign reading “Papi is a Legend,” saluting designated hitter and series MVP David Ortiz.

Ben Eley, of Blue Hill, Maine, cheered as police started to clear the crowds from the Fenway Park area during the 5th inning.