BOSTON (WHDH) -- A new round of EEE spraying gets underway tonight.

Crews will spray the area west of Route 1 in Ipswich.

Spraying will take place between 8:30 p.m. and midnight.

Mosquitoes carrying EEE have been detected in Topsfield for the third time.

People in the area are advised to stay indoors during the spraying.