A former faculty member was arrested Monday in the shooting of a medical school dean and another person at a deli in Chappaqua, N.Y., the upscale Westchester County hamlet where presidential candidate Hillary Clinton lives.

One of the wounded is Dennis Charney, dean of the Icahn School of Medicine at Mount Sinai in Manhattan.

“This is an extremely disturbing event,” saidKenneth Davis, chief executive of Mount Sinai Health System. “Fortunately, Dr. Charney’s injuries are not life-threatening and we expect he will fully recover.”

The shooting took place around 7 a.m. Monday at Lange’s Little Store & Delicatessen. Police said they responded to reports of shots fired and found two victims with gunshot wounds.

Police identified the alleged shooter as Chao Hengjun, 49 years old, of Tuckahoe, N.Y., who was arrested at the deli. He couldn’t be reached for comment, and it wasn’t clear if he had an attorney.

Mr. Chao was a Mount Sinai faculty member who was terminated for cause in 2010, according to Mount Sinai officials. Police said he appeared to be motivated by an old workplace dispute.

“I think he came up here intent on shooting someone,” New Castle Police Chief Charles Ferry said during a news conference Monday. Chappaqua is in the town of New Castle.

Dr. Charney and the other victim, whose name wasn’t released, were taken to Westchester Medical Center. The second victim was also expected to survive.

Mr. Chao sued Mount Sinai, Dr. Charney and others employed at Mount Sinai in 2010 for discrimination. According to court documents, Mr. Chao, formerly an assistant professor of medicine at Mount Sinai, filed the lawsuit following an internal investigation that found that he committed research misconduct. The lawsuit was dismissed.

Investigators recovered a shotgun in Mr. Chao’s car, which, based on an initial investigation, had been fired once or twice, police said. Chief Ferry said Mr. Chao was arrested without incident and was cooperating with police.
Mrs. Clinton and her husband, former President Bill Clinton, have lived in Chappaqua for several years. Their home is about a mile away from the shooting scene.