The UK is facing a shortage of 9,000 foster carers this year as many people mistakenly believe they would not be allowed to foster children, a children's charity has said.
Action for Children wants to dispel the "myths" surrounding fostering in a bid to encourage more people to think about taking in a child.
The charity said 96% of those asked also did not know how many children are currently in care, which is around 91,000 in the UK.
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A man, reportedly armed with a knife and a baseball bat, was detained close to the event and police cleared the area as a precaution.
A remarkably mild night
Thousands of people have gathered in the centre of Manchester for a vigil in the wake of the terror attack.