Four Libyan gunmen and two Iraqi civilians were killed on Monday in the northern city of Mosul, security sources said, dpa reported.
"Four gunmen, carrying the Libyan nationality, were killed after an army force stormed the place they were hiding in, in western Mosul," the sources added.
Meanwhile a university professor and a young woman were shot dead by unidentified gunmen in a different part of Mosul, which lies some 400 kilometres north of the capital Baghdad.
The area in and around Mosul is among the most ethnically diverse and dangerous in Iraq, where insurgents mount near-daily attacks, with much of the violence targeting vulnerable minorities.