Man City targeted by gang using 'industrial strength' fireworks outside their team hotel at 2.45am, 4.30am and AGAIN at 5.30am in a bid to disrupt them before facing Borussia Dortmund, with players repeatedly woken overnight by 'incredible bangs'

Manchester City's preparations for tonight's Champions League quarter-final with Borussia Dortmund in Germany have been hit after fans exploded fireworks outside their hotel in a series of early-hours incidents.

Witnesses have spoken of 'incredible bangs' which awoke residents – including members of Pep Guardiola's travelling party – at the Radisson Blu in Dortmund.

Sportsmail understands that a gang of 17 set off the first batch of what have been described as 'industrial strength' fireworks at 2.45am. City's security staff immediately scrambled to the scene and patrolled the area.

However, at 4.