The crash occurred Saturday afternoon in the 18800 block of the Grand Parkway between Cypress Rosehill Road and Mueschke Road.
Constable deputies are working with the Harris County Sheriff's Office at the scene.
Authorities have not revealed the conditions of people involved in the crash or what caused it.
ABC13 has real-time traffic data to help you navigate roads and avoid traffic delays.
[Ads /]
Sign up for traffic alerts that are sent straight to your phone through our ABC13 app. Manage your notifications from the settings tab.
Live traffic map