TORONTO - More than 1,000 children in Toronto are either getting to school late or not going at all due to an "unanticipated" bus driver shortage.

The Toronto District School Board says the problems affect about 60 routes throughout the city and mainly impact elementary students from both its board and the city's Catholic board.

Both boards say the problems are centred primarily around three companies that provide bus service.

They say they are scrambling to get as many children to school with drivers doubling and tripling up routes, calling in extra buses and taxis -- even some principals are out in cars helping out.

TDSB spokesman Ryan Bird says the situation is unacceptable and they'll recoup costs from the companies that aren't meeting their service demands.

Both boards are hopeful to have the problems fixed by next week.