A family of six is feared dead after their van was swept away by floodwaters Sunday afternoon in Houston.
Witnesses told the local TV station KHOU that the van hit high floods after crossing a bridge in Greens Bayou.
According to the TV station, the van was quickly swept up in the current and only the driver was able to escape. Four children and their grandparents are now feared dead.
The driver of the vehicle, which family members identified as the children's great-uncle, was able to grab onto a tree limb as the van sunk. KHOU reports that he told the children inside to try to escape from the back door, but they were unable to do so.
Houston police Chief Art Acevedo said he has no information about the family mentioned in the KHOU report but added he's "really worried about how many bodies we're going to find" from Harvey's devastating flooding.
Earlier on Monday, Acevedo said 2,000 people have been rescued from floodwaters.
The Associated press contributed to this report.