By DAVID WILKES FOR THE DAILY MAIL

Darting silently in formation, the mysterious glowing orbs light up the night sky.

Some say these orange lights even weave in between each other with the precision of a synchronised flying team from some far corner of the universe.

Clusters of more than 100 have been spotted across Britain and even Holland, leaving onlookers with an eerie sense that, for all the mystifying beauty of the strange objects, they may have just witnessed an armada of invading UFOs.