Saskatoon police responded to a rollover around 8:30 a.m. Saturday at the cloverleaf of Highway 11 and Circle Drive in the south end.
A semi tractor and two trailers rolled over spilling what appeared to be agriculture seed, a police news release said.
No injuries were reported.
Northbound traffic on Highway 11 is down to one lane.
The eastbound Circle Dr exit to northbound Circle Dr is closed.