The number killed in Venezuela amid mounting political unrest rose to 38, as opposition leaders reported that dozens of officers had been detained for refusing to repress protesters. <br/><br/>Former presidential candidate Henrique Capriles said 85 officers, a majority from the military, had been detained for expressing discontent with the actions of the nation's national guard. <br/><br/>There has, however, been no independent confirmation of the detentions.<br/><br/>National guardsmen have repeatedly launched tear gas and rubber bullets in more than a month of anti-government protests. Demonstrators are calling for President Nicolas Maduro to hold elections, but the embattled leader shows no sign of ceding to their demands.