The search for the suspect who shot and seriously injured two Birmingham firefighters continues, and more reward money is now offered for information leading to the gunman.

Crime Stoppers of Metro Alabama on Thursday announced a reward of up to $15,000. The reward amount was previously $10,000.

The gunfire erupted about 8:30 a.m. Wednesday at Birmingham Fire and Rescue Service Station 9 in Norwood.

Police and fire officials said firefighters Jordan Melton and Jamal Jones were in the bay when the unknown suspect entered and opened fire.

Both injured firefighters were taken to UAB Hospital.

Jones was last known to be in serious condition and Melton in critical condition.

No updates regarding the shooting or investigation have been issued since Wednesday morning.

The suspect is believed to have fled the scene in a silver Nissan Altima. A description of the suspect has not been released.

Birmingham Police Chief Scott Thurmond at Wednesday’s crime scene said the shooter entered the fire station through the open bay door, which typically remains open to be accessible to residents who need their blood pressure checked or other help or information.

The shooting happened shortly after they started their shift.

The early indication is that this was a targeted attack, Thurmond said.

“We don’t know why it would be a targeted attack, that’s one of the things we’re trying to determine,’’ Thurmond said. “It’s extremely unusual for someone to come target one of our fire stations and so we’re trying to see why would someone want to target one of these fire stations in Birmingham.”

“I find it extremely troubling that they would be targeted,’’ the chief said. “I hate to say it but unfortunately, I think police would be the bigger targets. Our firefighters are there to protect and aid and rescue our citizens and to seem them critically injured is troubling, disheartening.”

The chief said at least one other firefighter was inside the station when the shooting happened. That firefighter was not injured.

Asked if it could be personal in nature versus a random attack on the profession itself, Thurmond said, “That’s one of the issues we’re looking at when we say, ‘Is there a connection? What is that connection if there is one?’ We just don’t know at this point in time.”

“Is it professional? Is it personal? Is it none of the above?’’ Thurmond said. “We just don’t know.”

Thurmond said he doesn’t think the general community is in danger.

Anyone with information is asked to call Birmingham detectives at 205-254-1764 or Crime Stoppers at 205-254-7777.