The Ministry of Defence has revealed details of a major revamp of RAF Lossiemouth.

Runways and a new air traffic control centre will be built at the Moray base ahead of the arrival of a new fleet of surveillance planes in 2020.

Nine Poseidon P8s will be based there by 2021, along with Typhoon fighter squadrons.

The MoD also plans to build new houses and a fire station at the airbase, according to documents published this week.

The introduction of the P8s was announced as part of the Strategic Defence and Security Review last November.

They will replace the UK's fleet of Nimrod surveillance aircraft, which was retired in 2010.

The MoD is expected to make a final decision on its level of investment at the airbase by April 2017.

Aviation giant Boeing plans to build a £100m facility at Lossiemouth to service the new fleet.