Shelter's Antonia Bance has told Daybreak that many families are today homeless for no fault of their own.
"Many of them have lost their job or their relationship has broken down. They don't want it to affect their kids, they don't know what to do," she said.
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The Prime Minister will say Moscow's brazen flouting of international law represents a threat to the basis of democracy across Europe.
In some cases, victims of violence and other serious crimes face long delays as forces are unable to dispatch officers promptly.
Mr Corbyn will highlight increases of almost 6% in council tax bills across the country.