Supt Kevin Purcell, of West Mercia Police has said four children were playing near the lock, but two fell in and another then went to try and get them out, while the fourth ran home to raise the alarm.
This video shows the canal where three children entered the water. Police say they are 'working hard to establish exactly how Imie came to be in the water'.
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Cold and cloudy with patchy rain, sleet and hill snow.
Prince Philip's Freelander 2 was designed in Gaydon by Coventry-born Gerry McGovern. It received the top score in crash tests.
Mostly cloudy with outbreaks of rain.