Police in Middleborough are asking a New Bedford man to turn himself in after obtaining a warrant charging him with the rape and sexual assault of an adult student who is cognitively disabled, authorities said.

Phillip Houtman, 28, is an employee at the Chamberlain International School in Middleborough. He is accused of raping and sexually assaulting a 19-year-old student, police said.

The school is a co-educational therapeutic boarding and day school that serves students ages 11 to 22, according to the school’s website.

Middleborough Police Chief Joseph Perkins in a statement released Thursday said he is “strongly suggesting” Houtman turn himself in.

Houtman faces charges including two counts of indecent assault and battery on a person with an intellectual disability; rape; assault to rape; and open and gross lewdness, the statement said.

Police were notified on Sept. 30 of an allegation about Houtman sexually assaulting the student, according to the statement.

Houtman is an overnight staff member who has worked at the school for less than a year, officials said.

Anyone with information about Houtman’s location is asked to call police at 508-947-1212.