Two protesters in Seattle were seriously injured early Saturday morning when they were hit by a car that drove onto a closed interstate.

Summer Taylor, 24, from Seattle, was struck by the vehicle and hospitalized with life-threatening injuries, Washington State Patrol Captain Ron Mead said at a news conference.

Here are two pictures of the suspect vehicle that struck two protesters on I-5 this morning.

"We do not know exactly where the vehicle came on but we suspect he came on the wrong way, on a ramp

The captain urged protesters to stop holding demonstrations on the highway