PERTH AMBOY — Two children who were reported missing Friday night were returned home Saturday.

But police said they are still looking for the 48-year-old man they were last seen with on Friday.

Police are on the lookout for Frank John — described as 6 feet 1 inch tall and 200 pounds with brown eyes and black hair. He was driving a silver Toyota Highlander with New Jersey plates J80GVE.

The Woodbridge resident has been charged with kidnapping 8-year-old Keira Grewal and Gianno Grewal, 9, who had last been seen with him 4 p.m. Friday in this Middlesex County city.

Investigators say he picked up the children to take them out for food but didn't bring them back home until 8:30 a.m. and 9 a.m. Saturday — hours after police had put out an alert for the children.

Police on Saturday did not release other details, including the man's relationship to the children.

Sergio Bichao is deputy digital editor at New Jersey 101.5. Send him news tips: Call 609-438-1015 or email sergio.bichao@townsquaremedia.com.