Tropical Storm Isaias whips up eastern US, killing at least 5

At least five people have been killed as tropical storm Isaias swept through US states on the Atlantic coast.

Two died when a tornado struck a mobile home park in North Carolina and at least three more were killed in New York, Delaware and Maryland.

Isaias has since moved into south-eastern Canada and been downgraded to a post-tropical cyclone.

The Canadian hurricane center has warned of heavy rainfall over southern Quebec.