A paramedic seriously injured when an SUV slammed into the side of an ambulance in which he was a passenger has had to have his leg amputated.

Christopher Doyle said he has no recollection of the late Tuesday afternoon crash, which bashed in the passenger side of the ambulance, but he said he is glad to be alive.

Witnesses said a Port St. Lucie woman was speeding before the crash that killed her and injured two others when she crashed into the ambulance at a Fort Pierce intersection.

The crash happened shortly after 6 p.m. at Virginia Avenue and 25th Street, according to Fort Pierce police spokeswoman Audria Moore.

An ambulance, driven by St. Lucie County Firefighter William Hines, was at the intersection of Virginia Avenue and 25th Street to make a left turn onto 25th Street, when a Nissan SUV, driven by Germaine Lindor, 63, of the 2600 block of NW Hatches Harbor Road, Port St. Lucie, entered the intersection and collided with the passenger side of the ambulance, according to Moore.

The impact tipped the ambulance over on its driver side and caused it to spin around and skid on its side for about 50 feet. The SUV continued traveling north on 25th Street until it came to a stop.

Witness William Kelly said Lindor's SUV was traveling at a high rate of speed before the crash.

"This is a 45 [mph zone] and it was doing twice that, no problem at all. Ninety, easy,'' Kelly said. "I saw her 50 feet away from the intersection. I couldn't believe that she wasn't slowing down. ... Hit that hump, it seemed like her truck left the ground and jumped up in the air and hit the ambulance.''

Lindor was pronounced dead at the scene.

Her family members wept at the sight of her crumpled vehicle.