The security scare comes just days after the deadly suicide bombing at a pop concert in Manchester this week.
"Police are responding to a call at a college in Trafford. Officers are in attendance and we are currently assessing the situation. EOD (Explosive Ordnance Disposal) have arrived on site," Greater Manchester Police said in a statement.
According to reports, the EOD conducted a search and have since left the site at Linby Street area near the college and a large number of roads have been closed and cordoned off.
Libyan-origin Salman Abedi blew himself up at end of an Ariana Grande concert at the Manchester Arena on Monday night, killing 22 people and injuring 64 others.
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