Boston, USA: snow scenes from the sky

As residents and emergency teams in Boston, USA, struggle to deal with 60cm of fresh snow, the roofs of some buildings have collapsed under its weight.

Rail services were suspended as teams worked to clear the lines of snow and schools were forced to close their doors.

Forecasters have warned of more snow on Thursday and over the weekend.

Footage taken from the air shows the damage the latest snowstorm has caused.