It squatted under a hastily assembled forensics tent in front of Lord Deramore’s Primary School, emitting steam and an unearthly green glow.
The lawn had been sealed off by crime scene tape. Forensics teams in Hazmat suits were examining the object, while police teams stood guard.
As children began to arrive at just after 8am, headteacher James Rourke was on hand with a megaphone to give reassurance.
YOU’LL FIND MORE ON THIS STORY AND OTHERS AT www.yorkpress.co.uk OR PICK UP YOUR COPY OF THE NEWSPAPER ITSELF AVAILABLE SIX DAYS A WEEK AT YOUR LOCAL NEWSAGENT