Dhaka, Dec. 20 -- The UN Secretary-General António Guterres has urged all parties in Bangladesh to "exercise restraint" over the death of Inqilab Moncho Convenor Sharif Osman bin Hadi.

UN spokesperson Stephane Dujarric relayed the call at a briefing in New York, according to a UN statement issued on Friday.

Dujarric said Guterres has called for an impartial investigation into Hadi's death, in line with international human rights standards.

"Refrain from violence, reduce tensions and exercise maximum restraint in order to preserve a peaceful electoral environment," he urged the people of Bangladesh.

Hadi was attacked around 2:15pm on Dec 12 while travelling by rickshaw near Dhaka's Bijoynagar Water Tank. Two assailants arrived on ...