LONDON (Reuters) - Egyptian authorities have accused Reuters and the BBC of inaccurate coverage of clashes in the western desert between security forces and armed militants in which police officers and conscripts were killed on Friday.  In a statement, Egypt s State Information Service (SIS) said Reuters had made  grave professional mistakes  by relying on unidentified security sources and not  resorting to official security authorities to get correct information .  The Ministry of Interior in an initial statement on Friday did not give any casualty figure for Friday s clashes. On Saturday, a ministry statement said 16 police and conscripts were killed and another 13 wounded in a remote western desert area after they came under heavy fire from the armed group.   However, three security sources told Reuters as many as 52 police had been killed in gun battles, which security sources said involved militants firing rockets at a police convoy.    We take seriously our obligation to report the news fairly and accurately, and were careful here to report both the Interior Ministry s account of the situation as well as information we received independently from other sources,  a Reuters spokesperson said.     The SIS also criticized the use of the word militant in the English version of the story that Reuters published.    Reuters English exchanged the term  terrorists , which is only accurate and realistic description of those elements, with the term  militants , a matter that may give a positive connotation to the reader,  the statement said. The BBC issued its own report on the Egyptian statement. here 
Egypt authorities challenge Reuters on casualties in western desert attack