(AP) — Firefighters are working to extinguish several brush fires in eastern Nebraska.

Fires broke out as temperatures climbed into the low 70s Sunday, but winds gusting 30-to-40 mph made it difficult to contain the fires.

No evacuations or serious injuries were reported Sunday afternoon, but at least one firefighter had to be treated for smoke inhalation near Branched Oak Lake.

Some roads had to be shut down at Branched Oak as crews battled a grass fire northeast of the lake.

Otoe County officials say firefighters were battling fires near Dunbar and Palmyra.

The Saunders County Sheriff’s office says a grass fire northwest of Ashland was contained Sunday.

Another brush fire was reported near Springfield, Neb. Sunday afternoon. That blaze forced a road closure nearby, but no injuries were reported.