ROCHESTER, N.Y. — Three men and a high school student were charged with plotting to attack a rural upstate New York Muslim community named Islamberg with explosives, authorities said Tuesday.

The teen and three men were accused in January of planning to attack the community of Islamberg, near Binghamton. Police say they had access to 23 rifles and shotguns and three homemade explosives.

Phelan declined to talk about the motive for the attack, citing the ongoing investigation. Islamberg lies in a rural area about 200 miles southeast of Rochester, near the city of Binghamton, N.Y. It ...