DHAKA: Several residents across Bangladesh spent a sleepless night as they gathered in groups to guard the streets amid fears of robbery and looting by criminals in the violence-hit country, where an interim government headed by Nobel laureate Muhammad Yunus is all set to take oath on Thursday. Security concerns have gripped the country since Prime Minister Sheikh Hasina's ouster on Monday as police observed a work abstention, citing fears for their safety amid reports of deadly attacks on security personnel. Gangs of criminals have been looting and robbing homes in the absence of law enforcers over the last two days. Many residents spent a sleepless night on Wednesday amid fears of robbery and looting. Residents in many areas, including in Uttara and Mohammadpur, formed neighbourhood watch groups to stand guard, bdnews24.com news portal reported.