Updated

Three siblings who authorities say shot up a police car in Florida and robbed a bank in Georgia were on the loose Thursday and likely carrying an assault rifle and other weapons.

A federal magistrate in Macon, Ga., issued arrest warrants for Ryan Edward Dougherty, 21, Stanley Dylan Dougherty, 26, and Grace Lee E. Dougherty, 29.

The three armed suspects entered a Valdosta, Ga., bank on Tuesday, fired shots into the ceiling and demanded money, the FBI in Atlanta said in a news release

Witnesses at the Certus Bank said the just after noon, two men and a woman all dressed in black with masks on came in through the front entrance of the branch in southern Georgia just over the Florida state line.

At least two of the robbers showed weapons, including one described as being an AK-47 type assault rifle and the other appearing to be an automatic pistol, the FBI said. The other robber grabbed an undisclosed amount of money. The trio left the bank and in a white 2006 Subaru Impreza with New York license plate FBE-5900.

Earlier that morning, a police officer in Zephyrhills, Fla., about 200 miles south of Valdosta, tried to pull the group over for speeding, the FBI said.

A patrol officer was chasing the car when one of the suspects began shooting at his police cruiser, disabling it. The officer was not injured and the siblings got away, the FBI said.

The Pasco County Sheriff's Office also is investigating whether the siblings are connected to gun parts found at Tampa International Airport Wednesday morning.

Public records list an Orlando, Fla., address for Grace Dougherty and a Zephyrhills, Fla., address for Ryan Dougherty. No listing was found for Stanley Dougherty.