More than 600 students aged between 11 and 16 attend the Al-Hira Educational and Cultural Centre in Luton, Bedfordshire, each week for weekend and evening classes on the Quran and anti-Islamic State (IS) for the last eight months, the Daily Mail reported on Sunday.
"The premise is simple and I believe that there is an ideological war. As well as IS promoting their crimes they misuse the Quran. We want to teach the children the real message of the Quran and for their mind to be clear," Imam Muhammad Ehsan Ullah said.
"If you ask any Muslim they would tell you that it is completely against Islam to kill any innocent person," he added.
Luton has seen a number of people leaving Britain in order to join the IS and the lectures aim to teach students how IS is targeting young people like them on social media.
In 2015, a family of 12 left Luton to travel to Syria to join IS and in May 2016 two men were convicted for plotting to join IS to kill US soldiers.