Four U.S. Marines and a law enforcement officer have been shot in attacks on two military recruiting centers in Chattanooga, Tennessee. Details are still very preliminary, but this is what we have so far:

NBC’s Pete Williams reports that five people have been shot: one police officer, and four Marines.

The shooting incident began on the U.S. Naval Recruiting on Lee Highway in Chattanooga ended at the U.S. Naval Reserve Center on Amincola Highway Thursday morning about 11am.

A Chattanooga police officer was shot, according to Chattanooga Mayor Andy Berke. Both Berke and CPD Cheif Fred Fletcher visited the shooting scene and went to the hospital to check on the officer.

The Hamilton County Medical Examiner is on standby, but has not been dispatched to either of the scenes.

Blood Assurance has send multiple units of blood to Erlanger; requesting donations to add those who’ve been injured, shot.

The Department of Homeland Security has activated their Chattanooga Strike Team, other district strike teams have been put on standby.

Chattanooga police have stated that the situation is now over, and national news media are claiming that the attacker may be deceased.

We will update this story as we have more verifiable information.

This attack follows a 2009 recruiting office shooting in Little Rock, AR, by a Muslim convert that killed one soldier and wounded another.

Update: Four Marines and the attacker have been officially confirmed killed in the attack in a multi-agency press conference. Three people, including the police officer noted in the original story, were wounded. The police officer was wounded as one of several officers who engaged and killed the shooter.

The U.S. Attorney is investigating the attacks an acts of domestic terrorism until it is proven otherwise. The suspect had multiple weapons, but the FBI is refusing to specify what they are at this time.

Update: CBS News has identified the suspect as a non-Presbyterian:

Chattanooga Mayor Andy Berke said five people died in all, including the gunman. Two law enforcement sources told CBS News that the shooting suspect was identified as M______ Y______ A________.*

This appears to be the third domestic terrorist attack on a military gun free zone on President Obama’s watch. In those attacks 15 people have been killed, and 35 have been wounded.