Ottawa police are asking for the public's help in finding a missing 12-year-old girl who ran away from her east-end school.

Police said Sara Linklater was last seen Friday and has a "pattern" of running-away behaviour.

Although police said there's been contact with Linklater since she's been on the run, officers are concerned because of her young age.

She is described as 5'5", 160 pounds with red or brown hair. She was last seen wearing a light-coloured hooded sweatshirt and jeans.

Anyone with information is asked to call Ottawa police at 613-230-6211 and 613-236-1222 ext. 5355.