Tenants with one spare bedroom have had a payment reduction of 14% and those deemed to have two or more spare a reduction of 25%.
Lawyers for the 10 cases say that, unless the families move from their homes into smaller properties, they face building up rent arrears and being forced out any way.
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Charlton Athletic Football Club have launched an internal investigation over an allegation of historical sexual abuse.
The government is "deeply concerned" by reports of UK weapons being used by the Saudis in strikes on civilians in Yemen, Boris Johnson says.
Cold and sunny for most, increasingly cloudy from the west. Cloud and wind spreading from the west of UK.