In a huge embarrassment for cricketer-turned-politician Imran Khan, parents on Wednesday stopped him from entering the Army School in Peshawar where 142 children were killed in a terror strike.

Parents blocked Imran Khan's entry in the school and shouted slogans of "Go Imran Go".

Pakistani children returned on Monday to the school where Taliban gunmen killed 150 of their classmates and teachers last month, clutching their parents' hands tightly in a poignant symbol of perseverance despite the horrors they had endured.

It was the first time the school had reopened since the assault and security was tight. The nation has been reeling from the December 16 terrorist attack in Peshawar — one of the worst Pakistan has experienced. The violence carried out by seven Taliban militants put a spotlight on whether the authorities can end the stubborn insurgency that kills and maims thousands every year.The massacre also horrified parents across the nation and prompted officials to implement tighter security at schools.