Tight net of security surrounds Manchester Xmas Markets

Credit: Doug Brown, ITV Granada

Armed police are patrolling Manchester's Christmas Markets for the first time.

The markets open for business today and the new police presence won't always be seen - undercover officers carrying guns will also mingle with crowds.

Concrete barriers are also in place.

The heightened security comes after the Manchester Arena bombing earlier this year.

Clip of Supt Chris Hill Greater Manchester Police:

Credit: Doug Brown, ITV Granada

Clip of Cllr Pat Karney, Manchester City Council: