The family of a 14-year-old autistic boy who cannot speak says he has been missing since Friday.

Avonte Oquendo was seen on a school surveillance video leaving the Center Boulevard School in Long Island City, Queens, around 12:30 p.m. Friday.

His mother, Vanessa Fontaine, appealed to the public to help locate her son. Anyone who may have seen the boy is asked to call the NYPD Crime Stoppers at 800 577-8477.

The family says Avonte has a good understanding of the subway system but isn’t able to communicate verbally.

Police officers have handed out missing person leaflets and canvassed the area for the missing boy.