Police released a photo of the shirt Avonte Oquendo was wearing the day he disappeared. View Full Caption NYPD

LONG ISLAND CITY — As investigators continued to search for autistic teen Avonte Oquendo, who vanished from his school two weeks ago, police released a photo of the shirt he was wearing the day he disappeared.

The NYPD tweeted the picture of the gray and white striped shirt, along with an updated photo of Avonte, once again urging anyone with information on the missing 14-year-old, who cannot speak, to come forward.

Police said earlier this week that they were reaching out to clothing company Old Navy to get a replica of the shirt the Avonte was wearing in order to use it in the ongoing and massive search operation.

Family, volunteers and police have been combing the city for Avonte, who is autistic and cannot speak.

His family will rally Saturday morning in Harlem with the Rev. Al Sharpton's National Action Network, according to the organization's website, to make a public appeal for help in their search.

Avonte has been missing since Oct. 4, and was last seen leaving his school at 1-50 51 Ave. in Long Island City wearing a gray striped shirt, black jeans and black sneakers, police said. He is 5-foot-3 and weighs 125 pounds.

Anyone with information is asked to call the NYPD's Crime Stoppers Hotline at 800-577-TIPS. The public can also submit tips by logging onto the Crime Stoppers website at WWW.NYPDCRIMESTOPPERS.COM or by texting their tips to 274637(CRIMES), then entering TIP577.