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TERROR TEST RUN CAUSES CHAOS IN FRANCE

Host of the Euro 2016 tournament this summer, France surrounded its largest soccer stadium with a 7-foot fence and deployed 1,700 security personnel in a bid to prevent repeats of November's ISIS bombing. However, this did not all go to plan as the test run caused chaos.

The new measures were installed at the Stade de France ahead of Euro 2016 which kicks off across the country in three weeks (the first match of Euro 2016 is scheduled for June 10).

However, thousands of fans became trapped by a new two-tier security system that forced supporters to pass through pat-downs and multiple ticket checks on Saturday. Some people in the densely-packed crowds even ignited fireworks in protest to the measures.

Poor signage "left 40,000 fans scattered around" the stadium, Italy's Gazzetta World newspaper reported. It added that some supporters were "led into narrow tunnels" as they tried to enter one of just four entrances into the security perimeter.

The trial run was carried out during France's domestic cup final between Paris Saint-Germain and Olympique de Marseille. PSG were the eventual winners in the keenly contested match, though that's no real surprise given that they were one of the favourites for the Champions League (let alone the domestic cup) with StanJames giving them odds of just 6/1.

Antoine Mordacq, a security and safety manager for Euro 2016, told NBC News before the test that he was "confident" to test the new measures on the French cup final.

"We are prepared, we are ready for the tournament," he said.

Things were were almost as chaotic inside the 80,000-capacity stadium on Saturday. More fireworks and smoke bombs were seen being detonated in the seating areas, and Marseille supporters even appeared to light a bonfire after their team lost the match 4-2.

The Stade de France was targeted by suicide bombers during the November 13 attacks on Paris that saw 130 people murdered across the city. The attempts to damage the stadium appeared unsuccessful, however, with three explosions detonating nearby but none inside the venue itself. One bomber was turned away because he did not have a ticket.