A look inside Hull's £300m Siemens turbine blade factory

Ahead of its official opening, the BBC has had a tour of Hull's £300m Siemens factory to learn how wind turbine blades are made.

The 10 acre (40,000 sq m) facility at Alexandra Dock will be fully operational in 2017, with more than 600 staff already working there.

When finished, the blades are 250ft-long (75m) and weigh 30 tonnes.