KABUL, Afghanistan – A suicide bomber detonated his explosives at the entrance to a U.S. base in eastern Afghanistan on Saturday, killing three Afghan soldiers and one Afghan civilian, a U.S. official said.

A counter-terrorism expert says there is only anecdotal evidence backing newspaper reports claiming the Taliban is specifically targeting Australian soldiers in Afghanistan.

Tehran’s provisional Friday Prayers leader Ali Jannati dismissed as biased certain analyses presented about the resignation of Iran’s former nuclear negotiator, stressing that Ali Larijani’s replacement with Saeed Jalili would not be followed by a shift in Tehran’s nuclear policy.