Amity Regional High School dismissed students early because of downed power lines.
A message on the school website said students would be dismissed as soon as buses became available because of downed powerlines in Woodbridge.
Police said a large tree fell around 10:15 a.m. across Center Road and brought utility wires down.
Center Road will be closed between Amity Road and Pease Road for several hours.
Get Connecticut local news, weather forecasts and entertainment stories to your inbox. Sign up for NBC Connecticut newsletters.
Drivers are asked to avoid the area.
Sign up for our Breaking newsletter to get the most urgent news stories in your inbox.
