A school in Pakistan came under attack by gunmen who killed the security guard on Monday, bringing back horrifying memories of the 16 December Peshawar school attack.
Gunmen attacked a boy's school in Dera Ghazi Khan, a town 500km from Islamabad.
Students and teachers of the school are said to be safe, according to Reuters.
"We are still not sure how many gunmen there were and whether they are still there. The police are searching," district police officer Rehmat Ullah Khan Niazi told Reuters.
It is not clear if the Pakistan wing of the Taliban has claimed responsibility for the attack.
Tehreek-e-Taliban gunmen had gunned down 153 people, mostly students, at an army school in Peshawar in Pakistan in one of the darkest days fo terrorism in the country.
Since then, other attacks were also reported on schools in Pakistan.
Armed gunmen on motorcycles had hurled grenades at a private school in Karachi in February. No one was injured.