At least eight people have been injured local police have confirmed. The shooting took place at around 01.53pm local time (08.53pm BST) at Highlands Ranch middle school. Police were forced to place the school on lockdown after reports of several "active shooters". Two juveniles have been detained by local police. No further details of the attackers have been released by officials. Although two juveniles have been detained, police confirmed that they are sweeping the school "room by room." More to follow...All rights reserved for this news site express.co.uk and under his responsibility