Afghan helicopter crash kills six

At least six people have been killed in a helicopter crash in the southern Afghan province of Helmand, Nato says.

The passengers were all civilians on board a private aircraft, a spokesman for Nato-led forces said. It is not clear what caused the incident.

The helicopter crashed near Sangin military base in Helmand. The district governor, quoting locals, told the BBC it had been shot down by insurgents.

Meanwhile, an Italian soldier has been killed in western Afghanistan.