Social media, photos: Baltimore riots continue through the night

Baltimore Mayor Stephanie Rawlings-Blake also announced a weeklong citywide curfew, 10 p.m.-5 a.m., starting Tuesday. She said a 9 p.m. curfew was already in place for children under age 14.

>> Click here or scroll down for social media posts, including dramatic images of the rioting.

What began as dozens of young people clashing with Baltimore police after Monday's funeral for Freddie Gray, who died after suffering critical injuries in police custody, turned into widespread rioting as the day went on. The unrest continued into the evening.

Bricks and other objects were thrown by rioters. By 8 p.m., police said 15 officers had been confirmed injured, and two officers remained hospitalized. At least 27 people had been arrested by 8:30 p.m.

>> PHOTOS: Protesters clash with police in Baltimore

Just before 6:30 p.m., the Baltimore Orioles called off their Tuesday night game against the White Sox: "After consultation with Baltimore City Police Department, tonight’s game between the Orioles & White Sox at Oriole Park has been postponed."

As day turned to night, stores were looted and buildings and cars set afire. Rioters cut at least three fire hoses while firefighters were trying to put fires out, twice in the presence of CNN cameras. One huge fire burned down a building described as a community center to support youth and families; it was not immediately clear how that fire started.

>> VIDEO: Baltimore mom slaps son for throwing rocks at police

Early in the day, the Baltimore Police began tweeting dangerous areas for the public to avoid.

By 6 p.m., the mayor of Baltimore had activated an emergency operations center to coordinate the police response to the violence. An additional 1,000 officers were called in from neighboring communities to bolster the police response to the rioting.

>> RELATED: Baltimore mayor talks tough after 'hands off' accusations

The Gray family attorney Billy Murphy, meanwhile, said the family was urging calm.

"They don't want this movement nationally to be marred by violence," he said. "It makes no sense."

The Associated Press contributed to this report.

>> RELATED: 5 things to know about Freddie Gray and the riots in Baltimore

EARLIER:

According to WJZ, the department has uncovered a plan for area, rival gangs including Bloods, Crips and Black Guerilla Family to join forces in what police have said is a plan to "take out" officers.

A statement released by the police department said, "Law enforcement agencies should take appropriate precautions to ensure the safety of their officers," WJZ reported.

Baltimore Police spokesman Capt. Eric Kowalczyk said the threat has been circulated to other  law enforcement agencies nationwide, WRC reported.