Bangladesh has expressed concern over the increased crimes, human and drug trafficking and unrest in the Rohingya camps in Cox's Bazar as their stay in Bangladesh is prolonging. Bangladesh urged Myanmar as well as the international community to take effective steps to sustainably repatriate the Rohingyas to Myanmar at the earliest, said the Ministry of Foreign Affairs on Saturday. Bangladesh is now hosting over 1.1 million Rohingyas in Cox's Bazar and Bhasan Char. Foreign Minister Dr AK Abdul Momen condemned the murder of Mohib Ullah, who was a widely recognized leader of the Rohingyas staying in Bangladesh. Mohib Uullah was an avowed supporter of the repatriation of the Rohingyas to Myanmar, according to a message shared by the MoFA on its verified Facebook page. The government of Bangladesh is committed to investigating the heinous crime and bringing the killers to justice, the message reads. Also read: Rohingya leader Mohibullah assassinated Earlier in the morning, the Foreign Minister vowed to bring the killers of Mohib Ullah to justice soon, in his first remarks since the Rohingya leader's murder sparked global condemnation. Dr Momen said a vested quarter killed Mohib as he wanted to return to Myanmar, his homeland. "The government will take stern action against those who were involved in the killing. Nobody will be spared," he said. On Thursday night, police registered a murder case in connection with the killing of Mohib Ullah at Ukhiya camp in Cox's Bazar on Wednesday night. The FIR for murder was filed against unknown persons at the Ukhiya police station on a complaint from Mohib Ullah’s brother Habib Ullah, officer-in-charge Sanjur Morshed had said. Unknown assailants gunned down the 44-year-old on Wednesday night. He was first rushed to a local medical facility and later shifted to Cox's Bazar Sadar Hospital, where doctors declared him dead on arrival. Read: Mohib's murder: FIR lodged, probe in full swing, say police He was buried in Lambashia camp-1 in Ukhiya upazila on Thursday afternoon after his namaz-e-janaza, which was attended by a large number of Rohingya refugees from camps in Ukhiya and Teknaf upazilas. Formerly a teacher in Myanmar, the slain human rights activist was popularly known as Master Mohib Ullah among the Rohingya refugees. He was the head of Arakan Rohingya Society for Peace and Human Rights (ARSPH) at Kutupalong camp.