"We are now seeking UN's interference for a proper investigation into the case as the government investigation did not bring the real killers to justice," she said while addressing a human chain organised under the 'Blue for Peace' programme initiated by the Kibria family at Panthapath in the city.

The UN should come forward to carry out an investigation into the Kibria murder case considering that he served under the UN with the status of Under-Secretary-General, said Asma Kibria.

"The government is still reluctant to bring the real killers of Kibria into justice despite passing of almost one year since the incident," she alleged.

Prof AAMS Arefin Siddique, former president of Dhaka University Teachers' Association, said lives of the general people including the lawmakers like Kibria are not safe under the present government.

Kibria's four sisters Safia Rahman, Fouzia Shahed, Ashrafi Siddique and Sharifa Mosabbir, daughter-in-law Rina Sultana Kibria and other family members took part in the programme.

Wearing blue dresses, intellectuals and commoners also spontaneously joined the programme.

Kibria, an Awami League lawmaker, was killed in a grenade attack at Boiddyerbazar in Habiganj on January 27 of last year.