Three fire crews were called out to Mynydd Llandegai

Eight fire crews were called out to four large grass fires across the region overnight.

Three of the locations were in Gwynedd while another was on moorland on the Horseshoe Pass near Llangollen.

Police were forced to close the road at 0330 BST on Tuesday morning because of smoke from a large gorse fire nearby.

Three crews were called out to Mynydd Llandegai near Bangor at about 2220 BST on Monday where firefighters were worried about a nearby water works and forest.

One farm building was threatened by the fire at Mynydd Llandegai

The spreading blaze came within a few hundred yards of homes and one farm building was evacuated.

But there was no immediate worries for the welfare of residents, according to North Wales Fire Service.

Other large grass fires were reported in Trawsfynydd, Amlwch on Anglesey, Holywell and on the Great Orme in Llandudno.

Six appliances were called to 50 acres of a forest fire near Bryn Celynnog in Trawsfynydd which burned from 1627 BST on Monday afternoon until 1000 BST on Tuesday morning.

Controlled burning

Mynydd Llandegai was the scene of a similar blaze last month in which firefighters battled with flames for four hours.

Although most of the fires are blamed on controlled gorse burning becoming out of control, fire officers say some had been set deliberately.

The spate of fires came on the last day of the allowed period for farmers to burn heather, grass, gorse and bracken without a licence.

From 1 April onwards, burning is only permitted with a licence in most areas until 1 November.

Blazes were also being tackled on Monday in mid, west and south Wales.

"As far as we know it's kids setting grass on fire and relighting it as we're putting it out," said a fire service spokeswoman.