IMPHAL: A large number of people on Monday paid tribute to 18 persons, who sacrificed their lives for safeguarding the territorial integrity of the state, 11 years ago.

During the people's movement, known as the June (2011) uprising against the extension of NSCN (IM) ceasefire beyond Nagaland, the 18 protestors were killed in police firing.

The assembly building, chief minister's bungalow, quarters of several ministers and the various political party offices including Congress, BJP and CPI were also torched by the irate protestors in the uprising.

The United Committee Manipur (UCM) observed Monday's event as "the 11th Great June Uprising Day" at Kekrupat, where the last rites of the 18 martyrs were performed.

The All Manipur United Clubs' Organization (AMUCO) observed it as the "11th Unity Day" at Thau ground, Thangmeiband, close to Kekrupat in the heart of Imphal.

At both venues, public meetings were held under heavy security cover.

Amid tearful scenes, thousands of people belonging to different communities, members of different civil bodies and families of the martyrs paid floral tributes to the memorials at Kekrupat. Some ministers and legislators also joined them in honouring the heroes.