MONTGOMERY CO., N.C.-- Two Winston-Salem children have died after a car crash Saturday in Montgomery County.

According to NC State Highway Patrol (NCSHP), the accident involved a car the children were riding in and truck. The accident happened at the intersection of Windblow Rd. and Belford Church Rd.

911 Call With Dispatch: Mobile Users Click Here

The two children have been identified as Dakota Truesdale, age 3, and Imani Truesdale, age 2. NCSHP says both children were riding in car seats in the back. They say the mother and father were airlifted to the hospital in Chapel Hill with serious injuries. The mother is pregnant and NCSHP says the unborn child survived the crash.

NCSHP confirms a stop sign was missing from the intersection because it was knocked down overnight. The driver didn't know to stop at the intersection.

An eyewitness told WFMY News 2's Erica Stapleton the collision sounded like an explosion. Dale Capel said he ran down to help after the crash. Capel says this isn't the first crash he's seen at the intersection, but this is the worst. He hopes to see a stop light go up there in the future.

The stop sign is now back at the intersection.

Highway patrol says no one is at fault in the crash.

This is a developing a story and WFMY News 2 will update here on our Facebook Page and on Twitter as we confirm information.