A huge fire has ripped across Swansea with locals saying flames are leaping more than 40ft into the sky.
Billowing clouds of smoke were seen unfurling from the red ring in Mynydd Gelliwastad in the Clydach area on Tuesday night.
More than 120 calls were made to the fire service by worried onlookers.
Three fire crews are attending the scene on a mountain, which borders a number of farms.
But the remote location of the blaze means it is difficult to quell.
Firefighters arrived at around 8pm, the South Wales Fire and Rescue Service confirmed.
A nearby resident, Mark Lane, told WalesOnline: ‘The fire is massive, with flames reaching an estimated 40-plus feet in height.
‘It’s spreading rapidly in both directions, making it a challenging situation for the fire brigade to manage, especially given its location at the top of a hill.’

The fire has broken out in Swansea, with locals reporting 40-foot flames

The red ring is sending clouds of smoke out in the Clydach area

Three fire crews are attending although they are having difficulty reaching the remote site
Mr Lane said some firefighters were trying to reach the blaze by crossing the land on foot.
A drone was sent up to assess the spread and scale of the fire, given the difficulty in accessing the site.
Images shared by locals show the flames are visible from miles away.
And local Andrew Webber added: ‘I’d just got to my parents to drop them home and could see the sky lighting up orange and then saw the flames.’
Another resident said he assumed the fire was controlled and small at first, as is relatively common on the hillside.
But as it grew, he realised the severity of the situation was unique.
The narrow load leading up to the scene remains a concern for fire truck access.