Calgary police are questioning three students in connection with an incident that left Alberta Premier Ralph Klein wiping banana cream pie off his face Monday.

The students could face mischief and assault charges.

Klein had just started his address at his annual breakfast at the Calgary Stampede and Rodeo when a man who appeared to be in his 20s hit him with the pie.

Ralph Klein watches as security officers take up the chase after he is hit by a pie (CP PHOTO)

• FROM April 5, 2001 How did protester get close enough to hit PM with pie?

Klein recovered quickly, remarking that the banana cream pie tasted "not bad."

He wiped away the remnants of the pie, then went to the McDougall Centre, which houses southern Alberta's government offices, to take a shower.

Police say they may execute search warrants on some television stations that recorded the attack.

The Calgary Stampede and Rodeo started Friday and runs for 10 days.

Klein holds a flapjack breakfast every year during the event.