Dhaka Metropolitan Police found no militant link to the murder of Italian national Cesare Tavella.
“The murder was planned and carried out as part of local and foreign conspiracy,” DMP Commissioner Asaduzzaman Mia told reporters at his office in Dhaka this noon.
“Clue behind the murder will be unearthed immediately,” the DMP boss added.
Earlier on September 28, Cesare Tavella, 50, was shot dead by armed criminals in the capital's Gulshan diplomatic zone.
Hours after the murder, Reuters reported that an online statement in the name of the hardline Islamist group Islamic State claimed responsibility for the attack.
Tavella worked as the project manager of Profitable Opportunities for Food Security (Proofs), a project of Netherlands-based organisation ICCO Cooperation.