A school on Lewis has evacuated after a chemical spill in a science lab.

Fire crews were called to the Nicolson Institute in Stornoway at about 10.15am on Friday.

The school has around 1100 pupils and they were all evacuated after only opening on Thursday.

Western Isles Council said that it was done "as a precaution".

It is thought the chemical involved was ammonia.

Highland and Islands Fire and Rescue said that three fire engines were at the scene.

The school reopened following a £35m revamp.