A crash involving a motorcycle and van on Thursday caused serious injuries and a significant road closure for more than four hours in Greenburgh.

The accident happened around 1:30 p.m. near the corner of Jackson Avenue and Fort Hill Road.

Drivers in the area told News 12 the road was completely blocked off, with all the cars stopped - creating a traffic nightmare. Some drivers said they were making U-turns to be able to get out of the area.

It is still unclear as of Friday afternoon how the crash happened or how many people were hurt, but police say the injuries were severe.

"I heard the accident, and the gas tank was 100 feet down the road," said Jeff DeMarco, of New Rochelle. "The bike was demolished, but it was crazy."

Two people were taken to Westchester Medical Center. Officials say one only had minor injuries and was released from the hospital. They say the other person was seriously injured and is currently listed in critical condition.