A French police officer stands guard outside the Grand Mosque in Paris, France, as Muslims arrive for Friday prayers, January 9, 2015.

Kalashnikov ammunition and ISIS propaganda videos were seized in raids following the closure of a mosque in the Paris suburbs, French authorities said.

The prayer hall in Lagny-sur-Marne, around 30km east of the capital, was shut down last Wednesday following a large-scale police operation.

Associated with the traditionalist Salafist branch of Islam, it is the third mosque in France to be closed after the coordinated extremist attacks on Paris on November 13.

The prefect – the highest representative of the state – in the Seine-and-Marne department said on Sunday “7.62mm ammunition for a Kalashnikov rifle and propaganda videos” for ISIS had been found in raids linked to the closure of the prayer hall.

The locations of the raids were not given.

A revolver and extremist documents were also found during searches at the homes of the mosque leaders, Interior Minister Bernard Cazeneuve said previously.

A total of 22 travel bans and nine house arrests for “radicalized individuals” have been issued as a result of the operation. Police also found recordings of religious chants “glorifying the martyrs of jihad linked to the terrorist organization Jabhat al-Nusra”, the Syrian branch of al-Qaeda, the prefecture added.

The recordings were found among a wealth of teaching material for youngsters in an undeclared madrassa, or religious school. “No request was made to open a private school,” the prefecture said in its statement.

Mohammed Ramdane, president of the local Muslim association in Lagny, had criticized the closure of the prayer hall on Wednesday, saying: “Nothing has been found. Nothing is hidden, we don’t hide anything.”

Related articles across the web

• Sott Exclusive: Thalys train paranoia: Dutch SWAT team 'mistakes' brown-skinned, teen fare-dodger for armed terrorist
• Thalys train employees to practice facing terror scenarios
• Thalys train employees to practice facing terror scenarios
• Greek Police Arrest Accomplice of Jailed Terrorist Nikos Maziotis
• Obama calls trio who thwarted train attack 'best of America'
• Thalys train employees to practice facing terror scenarios
• Thalys train employees to practice facing terror scenarios
• Thalys train employees to practice facing terror scenarios
• Thalys train employees to practice facing terror scenarios
• Thalys Train Employees to Practice Facing Terror Scenarios