Chronology of terror attacks in Punjab from 2001-2016

New Delhi: Saturday's attack at Pathankot Indian Air Force base is the second terror strike in Punjab within a span of six months.

Following are some of the terror-related incidents that have taken place in Punjab between 2001 and 2016 (these do not include seizure of arms and ammunition during the period).

March 1, 2001: A 135-yard underground tunnel detected across India-Pakistan border in Punjab's Gurdaspur district.

Jan 1, 2002: Three Army personnel killed and five others injured when a group of unidentified terrorists attacks them at a firing range in Damtal, close to Punjab's border with Himachal Pradesh.

Jan 31, 2002: Two persons killed and 12 others injured in explosion in a Punjab Roadways bus at Patrana in Hoshiarpur district.

March 31, 2002: Two people are killed and 28 others injured in a bomb blast on Ferozepur-Dhanbad express train at Daroha, about 20km from Ludhiana.

Apr 28, 2006: At least eight persons are wounded in a bomb blast on a bus carrying 45 passengers at Jalandhar bus terminus.

Oct 14, 2007: Seven persons, including a 10-year old child, are killed and 40 others injured in a bomb blast in a cinema hall in Ludhiana.

July 27, 2015: Seven people, including a Punjab Police Superintendent, killed when three terrorists carry out a strike on a police station in Gurdaspur district. All three militants also killed.

Jan 2, 2016: Four terrorists and three security personnel killed when militants storm IAF base in Pathankot.