High alert has been issued along the Attari border area near Amritsar following the blast on Sunday at Wagah on the Pakistan side even as BSF officials said that the flag-lowering ceremony for the day on the Indian side, which attracts a lot of visitors, was over by the time the attack occurred.

At least 55 people, including 11 women and three security personnel, were killed and nearly 200 injured when a suicide attacker detonated a powerful bomb at Wagah in Pakistan, just after the popular flag-lowering ceremony at the main Indo-Pak land border crossing.

BSF Deputy Inspector General RPS Jaswal said that immediately after the blast, a high alert was issued keeping in view the security aspects on the Indo-Pak border. He said that the entire visitors' gallery on the Indian side had become vacant much before the blast that occurred across the border in Pakistan.