Highlands and Islands Airports Ltd said its latest figures showed further improvement in passenger numbers.

Highlands and Islands Airports Ltd said it had seen an increase across its regional network.

Hial's Dundee Airport is closed on Monday and six other sites are to be affected later this week.

Prospect members at Highlands and Islands Airports Ltd have escalated their dispute over pay.

The action over pay follows strikes at Highlands and Islands Airports Ltd's sites in December.

A number staff at Highlands and Islands Airports Ltd have walked out in a pay dispute.

A number of regional airports have closed due to the action by Unite members.

Members of the Unite union are due to walkout on 19 and 22 December in a pay dispute.