A text message blast went out earlier to mobilize a search in Borough Park, Brooklyn for nine-year-old Leibby Kletzky, who was last seen leaving a local day camp yesterday, and community leaders are offering $100,000 for any information leading to the boy's return.

The boy's father left with police officers this afternoon for undisclosed reasons, and it's unclear where they were taking him.

Authorities say Leibby was last seen leaving the Boyan Day Camp on 1205 44th Street between 12th and 13th Avenues shortly before 5 p.m. Monday.

He went missing after a previously arranged break from his normal routine.

“He normally took a bus down, you know, like every child, he wanted a little bit of independence, wanted to do a little bit of walking on his own,” said Brooklyn Assemblyman Dov Hikind. “So they had decided that they were going to — instead of walking all the way home, the mother was going to meet him just two blocks or so away from the day camp. The day camp is at 12th Avenue and 44th street, and the mother was meeting him at 13th Avenue, just one street over. Never arrived. Never showed up.”

Leibby, also known by the Hebrew name "Yehuda ben Esther," is four feet tall and weighs 50 pounds.

He was last seen wearing a blue shirt with green and white stripes, blue pants, a black leather belt, black socks and black sneakers, and had a knapsack labeled “Nechmod Day Camp.”

Police and volunteers canvassed the area last night and searched stores, alleyways and backyards.

Hikind and two other community leaders are offering $100,000 to anyone with information leading to the boy's safe return.

Anyone with information on the case should contact the the Shomrim Patrol at 1-718-871-6666 or the Crime Stoppers hotline at 1-800-577-TIPS. They can also reach Crime Stoppers by texting CRIMES and then enter TIP577, or visitingwww.nypdcrimestoppers.com.

The Federal Bureau of Investigation joined in the search for a missing nine-year-old Brooklyn boy Tuesday night.

Police are using surveillance video to try to piece together what may have happened.

Investigators say Leibby Kletzky was last seen around 5:00 p.m. Monday leaving Boyan Day Camp on 44th Street in Borough Park.

The surveillance video was taken from a nearby locksmith. It clearly shows Kletzky walking by.

Authorities and hundreds of volunteers continued to canvass the area into the night, searching stores, alleyways and backyards.

"Supposed to be my time with my kids, and I can't spend time with my kids knowing someone else's kid is missing," said a parent.

“He normally took a bus down, you know, like every child, he wanted a little bit of independence, wanted to do a little bit of walking on his own,” said Brooklyn Assemblyman Dov Hikind. “So they had decided that they were going to — instead of walking all the way home, the mother was going to meet him just two blocks or so away from the day camp. The day camp is at 12th Avenue and 44th street, and the mother was meeting him at 13th Avenue, just one street over. Never arrived. Never showed up.”

A $100,000 reward is being offered to anyone with information leading to Kletzky's safe return.

He is described as 4-feet-tall, weighing 50 pounds. He was last seen wearing a striped shirt, blue pants and black sneakers.

Anyone with information on the case should contact the the Shomrim Patrol at 1-718-871-6666 or the Crime Stoppers hotline at 1-800-577-TIPS. They can also reach Crime Stoppers by texting CRIMES and then enter TIP577, or visitingwww.nypdcrimestoppers.com.