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(Image: PAP)

A drill simulating a “highly toxic chemical attack” in a heavily populated stadium took place in Poland.

It came on the same day the French prime minister Manuel Valls warned France could face chemical or biological weapons in the war with ISIS.

(Image: PAP) (Image: PAP)

Emergency crews – including fire, army and the police – took part in the huge exercise in the subway station of the Warsaw National Stadium.

The scenario surrounded passengers succumbing to fumes from a suspected toxic chemical release of sarin gas.

Ambulance, police and fire crews were initially sent to the scenario before army troops were drafted in.

It replicated the Tokyo subway attack in 1996 where sarin gas was used.

(Image: PAP)

Nearly 3,000 people took part in the drill and is the third to take place in the country.

Col Slawomir Tick, chief of defence against weapons of mass destruction in the Polish army, told PAP: "This exercise is to coordinate all services – not just the military – reporting to ministries of health, home affairs, agriculture, environment, and province governors who run the emergency response system.”

He said the drills have no connection to the attacks in Paris on November 13 and were organised a year ago.

129 people died after ISIS terrorists carried out six attacks in the French capital.

(Image: PAP)

The exercise will also cover a hazardous spill into the Vistula River, a diseases brought back from tourists returning from Asia, an ammonia leak at a chemical plant, and the release of radioactive material by terrorists.

UK cops held their own terror drill in June as they simulated a lone wolf attacker on the loose in London – just days after the mass shooting in Tunisia.

The capital’s streets were in lockdown as the multi-agency counter-terrorism exercise took place at the disused tube station in Aldwych.