New Hampshire forestry and fire officials say it's been more difficult fighting wildfires because of drought conditions, and they urge residents to be vigilant regarding an increasing threat of wildfires.

They say with conditions ranging from abnormally dry to extreme in southern New Hampshire, this fire season will likely be more challenging and potentially more dangerous than normal.

Steven Sherman, chief of the state's Forest Protection Bureau, says the potential for large wildfires is real as forest fuels continue to dry and new fuels are added with falling leaves.

Sam Evans-Brown / NHPR

It’s been a busy wildfire season in New Hampshire, with crews battling blazes in the Lakes Region Wednesday.

The Union Leader reports one wildfire closed Route 140 in Northfield yesterday.

Another atop Bayle Mountain in Ossipee burned for a second day, despite efforts to douse the fire from the air.

There were also reports of a wildfire in Merrimack.