The regional alert was issued for the child on behalf of the Harris County Precinct 6 Constable's Office.
He was reportedly last seen Tuesday at about 6 p.m. in the 15900 block of the I-45 North Freeway.
In an update early Thursday morning, the alert was canceled after the child was reportedly found safe in the Baton Rouge area, along with a vehicle believed to be involved.
Pct. 6 said a suspect was being held there on a warrant and is awaiting transfer to Harris County.