<p>Tokyo: Several Japanese Self-Defense Force members were injured on Monday in an explosion at an ammunition storage area inside the US military's Kadena Air Base in Okinawa, southern Japan, defence ministry officials said.</p><p>None of the injuries were life-threatening, one of the officials said.</p><p>The facility is used to temporarily store unexploded ammunition.</p>
<p>Tokyo: Several Japanese Self-Defense Force members were injured on Monday in an explosion at an ammunition storage area inside the US military's Kadena Air Base in Okinawa, southern Japan, defence ministry officials said.</p><p>None of the injuries were life-threatening, one of the officials said.</p><p>The facility is used to temporarily store unexploded ammunition.</p>