West Midlands Ambulance say the two children who were seen in difficullty in the River Arrow had been pulled form the water by the time crew arrived.
A spokeswoman said:
“Ambulance crews treated a six-year-old girl who was found to have a reduced level of consciousness and suffering from hypothermia. The girl was also found to have ingested some water from the river. Crews provided emergency medical treatment at the scene before airlifting the girl to Birmingham Children’s Hospital, where on arrival, she was conscious and talking to paramedics.
“A second patient, an 11-year-old boy, is also believed to have ingested some of the river water and was suffering from hypothermia. The boy again was provide with medical treatment at the scene and conveyed, via land ambulance, to the Alexandra Hospital in Redditch for further assessment and treatment."
More top news
Rescue teams arrived at the scene to find the two men standing on top of their car roof.
Rain and low cloud will clear to the south leaving a dry night with light winds.
Winds to ease through the evening allowing temperatures to fall steadily with a widespread frost developing.