A Sherman man facing allegations he engaged in a sexual relationship with a student while teaching at Brewster High School has been extradited to New York.

Christopher Vlangas, 41, of Upland Pastures Road, waived his right to an extradition hearing during a brief appearance recently in state Superior Court in Danbury. A Danbury police spokesman said Vlangas was taken into custody at Danbury Hospital on a New York warrant, was charged as a fugitive from justice and ordered held in lieu of a cash bond of $100,000.

Officials with the Putnam County Sheriff’s office said Vlangas is accused of having sex with a 16-year-old student while serving as a naval science instructor with the high school’s Navy Junior Reserves Officers Training Corps. The sexual activity occurred in several locations, including Patterson and Southeast, officials said.

Vlangas faces several felony charges including statutory rape and criminal sexual activity.

The investigation began after a high school staff member received information on Oct. 12 about a possible sexual relationship between Vlangas and the student, the sheriff’s office said. Vlangas did not return to school after authorities began investigating the claims.

Vlangas’ home, cars and his school office were searched as part of the investigation.

Vlangas, according to his LinkedIn profile, started teaching after he retired from the U.S. Navy. During his time in the military, he was a chief petty officer in a number of Navy bands in Europe, New Orleans and the Northeast. He received several commendations during his service, including three Navy Commendation Medals and four Navy Achievement Medals, the profile said.

Vlangas was arraigned on the New York charges before Justice Thomas Jacobellis in Carmel. He was held on a $150,000 cash bond or a $250,000 surety bond.