MANORVILLE - An Eastport South Manor High School substitute teacher is accused of having sex with a student.

Allan Concepcion, 38, was arrested at his Mount Sinai home yesterday. Police say he had an inappropriate sexual relationship with a 16-year-old student earlier this year.

Concepcion worked as a volleyball coach at the school. He was also a substitute teacher and gymnastics coach at the Hampton Bays Middle School.

He pleaded not guilty in a Central Islip courtroom today. His bail was set at $5,000 cash or $15,000 bond, and he was ordered to sign an order of protection. He is due back in court May 3.