The attack killed two soldiers in the vehicle on the spot and injured another. Three children who were playing along the road were seriously injured. All of the injured were rushed to hospital by helicopter but none survived, the statement said.
There was no immediate claim of responsibility for the attack. The military said security forces and intelligence officials were scouring the area for the bomber’s dog handlers.
The area has served as a haven for local and foreign activists for years. The army carried out a massive operation after militants attacked an army-run school in Peshawar in 2014, which left more than 150 people dead, most of them schoolchildren.
Also on Sunday, police officer Ejaz Khan said gunmen riding motorbikes opened fire on two members of the Sikh minority community at a bazaar in the Peshawar suburb of Sarband.
Khan said Ranjit Singh, 38, and Kanwal Jeet Singh were shot several times as they set up their spice shop in Batta Tal bazaar on Sunday. The attackers fled.
There was no immediate claim of responsibility. Police were investigating but Khan said it appeared the two Sikhs were being targeted because of their ethnicity. Sikhs are a tiny minority in the northwestern province of Khyber Pakhtunkhwa and have been targeted by militants in the past.
Meanwhile, Pakistani health authorities have documented the country’s third polio case of the year in the North Waziristan town of Miran Shah. National polio program coordinator and spokesperson Dr Mohammad Shahzad said the deadly virus was detected in a one-year-old boy. Last year, only one case was reported in the country.