Three fire tenders and gardai are attending a blaze in Glassagh, Gweedore after a shed containing a number of gas cylinders caught fire.
For safety reasons a 200 metre area around the fire has been cordoned off.
Part of the Glassagh Road is cordoned off and the fire service in Gweedore have said this will remain for at least 24 hours.
It's feared the gas cylinders could explode.
There no injuries as a result of the blaze.