ARLINGTON -- A woman injured in an Arlington crash Monday morning that took the life of her infant has now died.

Police say they were in a Honda Accord that was stalled in a southbound lane of State Highway 360 near Pioneer Parkway at about 5 a.m. when they were hit from behind by a pickup truck.

The baby boy was strapped in a car seat in the back seat of the Honda.

<p>Major crash on SH 360 near Pioneer Parkway in Arlington</p>

They were taken to a nearby hospital, but the baby died a short time later. The woman was hospitalized but died the next day.

The driver of the truck wasn't injured and is cooperating with police.

All southbound lanes of State Highway 360 were closed at Pioneer Parkway for a few hours.