Islamabad: Islamabad has issued an alert for a possible attack at the India-Pakistan border in Punjab province. Pakistan's National Counter Terrorism Authority on Tuesday, in a letter to Home Secretary of Punjab, said: "Reportedly, Tehreek-e-Taliban, Fazal Ullah group is planning to target parade at Wagah border in Lahore or Ganda Singh Border in Kasur on August 13, 14 or 15." It also said at least two suicide bombers have been dispatched to carry an attack on the border. "Extreme vigilence and heightened security measures are suggested to avoid any untoward incident," it said in a statement. Security have been heightened in Pakistan ahead of August 14, the country's Independence Day. Meanwhile, Pakistani Prime Minister Nawaz Sharif will chair a high level security meeting on Wednesday to discuss the National Action Plan. Talking to Dawn, a government official privy to the meeting, said a point-wise discussion was expected with the top brass. "Everything under the sun which has something to do with NAP implementation will be taken up and discussed," said the official.