PROVIDENCE, R.I. (AP) — A crowd of hundreds of people that the head of the Rhode Island State Police described as a “mob” smashed storefront windows, broke into a closed mall, and torched a police cruiser in Providence early on Tuesday morning.

More than 60 people were arrested and as many as 10 police officers were injured when they were hit by rocks or bricks, authorities said.

The people who caused the damage were not protesting the death of George Floyd, the Minneapolis man who died after a police officer pressed his knee into his neck for several minutes even after he stopped moving and pleading for air, authorities said.

“This was a mob,” state police Col. James Manni said. “These were not protesters. This was an intentional, coordinated attack on the city.”

Police received intelligence several hours prior to the violence that people were coming from out of state armed with crow bars, flares and gasoline, Manni said.

Providence Mayor Jorge Elorza on Tuesday morning said five of the people arrested were from out of state.

Providence Public Safety Commissioner Steven M. Paré said Tuesday that none of the hurt officers was seriously injured.

The trouble started at around midnight when a crowd of 300 to 500 people gathered in the street outside the Providence Place mall, police said. At about 2 a.m. police deployed tear gas to disperse the crowd, but fireworks and sirens continued to be heard in the city for hours, according to media reports.

At one point several people broke into the mall, and Manni thinks they intended to set it on fire.

Manni and Elorza say the damage could have been much worse had the police not been prepared.

“Last night’s incidents were devastating for our community who has already experienced so much unrest and pain,” Elorza said in a statement. “Violence is never the answer and we need collective action — one that is productive, not destruction of our small businesses, who have been impacted so much already and by putting others safety at risk.”

The mall, which reopened for the first time Monday since being closed in mid-March because of the coronavirus pandemic, was closed Tuesday, according to its website.