ORLANDO, FLORIDA (BNO NEWS) — A mass shooting was reported at the Gateway Center in Orlando on Friday morning, according to officials.

A 911 call came in around 11.30 a.m. local time, according to the Orlando Fire Department. The caller reported that there was gunfire on the eighth floor.

According to a spokeswoman, at least eight casualties were taken from the building. Four of those were described as being in “extremely critical condition,” while the conditions of those four others is not yet known. The spokeswoman said more victims are believed to be inside, and said the gunman has not yet been arrested.