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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Some overnight rain then mainly dry on Tuesday. Remaining Mild.
Further outbreaks of rain this evening.
Some will see further rain this evening, but the wet weather will gradually clear leaving a drier end to the night. Staying cloudy.