Screenshot from Twitter

UPDATE 4:51 p.m.: This post has been updated with new information.

The shooting occurred near Madison Street and Western Avenue, just blocks away from the downtown waterfront, the Seattle Police Department announced on Twitter. Officers were investigating a robbery at a 7-Eleven convenience store on 1st Avenue, The Seattle Times reports. They are being treated at Harborview Medical Center.

A female officer, age 42, is in satisfactory condition, according to the hospital. The male officer, 30, is in critical condition.

The female officer was shot in the chest, but the bullet was stopped by her Kevlar vest. The male officer was shot in the chin and the rib cage, according to Deputy Police Chief Carmen Best.

This is a developing story. We will keep you updated.

UPDATE 2:25 p.m.: One suspect is now in police custody, Times reports.

UPDATE 3:05 p.m.: "One of the suspected shooters is dead, a second is under arrest and a search is on for a third suspect, police say," KOMO reports. SPD told the Times that the second suspect has “significant injuries.”

Several blocks in downtown remain closed:

UPDATE 3:55 p.m.: SPD reports that there are only two suspects involved in the shooting, not three. All suspects are in custody.

UPDATE 4:27 p.m.:

UPDATE 4:51 p.m.: Based on details from arrested suspect, SPD said there may be third suspect involved in the shooting after all. "Case is rapidly developing and detectives are reviewing new evidence as it's coming in," they tweeted.

And here's some good news about the officer who was shot in the chin and rib cage:

In a follow-up tweet, UW Medicine representatives clarified that the male officer is in "serious but stable condition."