Western Isles Council will take "radical action" to halt depopulation in the Outer Hebrides.

It has been described as the biggest threat facing the islands, where the population is expected to fall 14% over the next two decades.

About 4000 fewer people will live in the Western Isles by 2039, according to the latest estimates.

Following a two-day seminar on depopulation in Stornoway this week, council leader Angus Campbell said: "It is important to note that these are projections based on nothing changing.

"Our aim is, together with our partners and communities across the Outer Hebrides, to take radical action which will reverse the decline in population and increase the number of younger people living and working in the islands.

"We have had two days of good and thoughtful discussions and we are now in the process of drawing up an action plan to take matters forward and to alleviate this acute economic and social challenge.

"Whilst there is much we can do at a local level we also need investment in the islands as well as government commitment at both a Scottish and UK level.

"The most obvious example of that is in the development of renewables which offer the best potential for economic development in the islands."

Western Isles Council expects a 28% decline in the 0-15 age group, a 21% drop in the working age population and an 11% rise in the number of pensioners.

It previously estimated a total decline of just over 11%. About 27,000 people live in the islands.

The Scottish Government said it has contributed £265,000 to TalentScotland, which promotes Scotland as a place to live and work.

The UK Government added it is working with Holyrood to "grow prosperity in all parts of Scotland".