ST. PETERSBURG, Fla. — A Florida Missing Child Alert has been issued for Allister Nasr, a 17-year-old last seen in the area of the 6500 block of Bayou Grande Boulevard Northeast in St. Petersburg.

BELOW: Watch St. Petersburg Police news conference about this case, along with the investigation into a 16-year-old killed.

Nasr is 5 feet 9 inches tall, 165 pounds, with black hair and brown eyes.

He was last seen wearing a gray jacket, blue shorts, and white shoes.

Allister may be riding on a white beach cruiser bicycle, according to authorities.

He was last seen traveling Southbound on Bayou Grande Boulevard Northeast.

Anyone with information about whereabouts of this child should contact the St. Petersburg Police Department at 727-893-7780 or 911.