Brooklyn explosion seriously injures one.

Bath Beach, Brooklyn- Early this a morning an explosion blew out a window of a second-floor apartment and seriously injured one person.

The blast occurred just before 8:30 AM this morning at a two-story apartment building at 159 Bay 49 St.

A small fire started because of the explosion, but firefighters were able to quickly extinguish it.

Four people suffered injuries, however only one of them were serious, according to the FDNY.

Officials say one victim who was seriously injured was transported to Staten Island University North Hospital, but the other three injured refused medical attention.

Right now, the cause of the explosion remains unclear.

victim into ambualcne
The seriously injured man. PHOTO: John Dooley/NYC911NEWS
window on the ground
Windows that blew out. PHOTO: John Dooley/ NYC911NEWS

Story by Brendan Walsh. Photos by NYC911News.