Irish Muslims have protested the “murderous campaign” of ISIS following the deadly attack in Tunisia last month, which killed three Irish citizens.

Close to 300 Muslims took part in an anti-Islamic State of Iraq and Syria (ISIS) rally on Dublin’s O’Connell Street, on Sunday. They denounced last month's killings in Tunisia, which included three innocent Irish victims.

According to the Islamic Centre of Ireland, the “Not In My Name” march aimed to show that the “murderous campaign” by the Islamic State terrorist group is “absolutely against the teachings of Islam.”

Imams from all over Ireland addressed the participants of the protest.

“Muslims marched against the caricatures of the Prophet Muhammad (SAW) in Dublin few years ago. The terrorists are damaging Islam and Muslims far more than the caricatures and Islamophobia is increasing rapidly due to the atrocities of terrorists,” said Shaykh Umar Al-Qadri, CEO of the Irish Muslim Peace and Integration Council.

“If Muslims can march against caricatures that do not damage Islam, then why can Muslims not protest against ISIS that undermine Islamic teachings. Silence of Muslims may wrongfully be interpreted by some as silent approval of ISIS.”

A two-minute silence was held in memory of the three Irish victims of last month’s attack on a Tunisian beach.

Shaykh Dr Umar Al-Qadri said that all Muslims are offended by the acts of ISIS.

"As Muslims we need a strategy to prevent radicalization.

"The vast majority of Muslims are silent and need to find their voice and speak out against these atrocities.

"Our jihad is a peaceful one, and its aim is to bring about awareness of the true teachings of the Koran which are not violent."

The group launched a detailed 'Declaration of peace and guide to preventing radicalization' document.

More events are planned, with the Shaykh saying "today is only the beginning of our campaign."

The event was controversial among Irish Muslim groups with some major ones, including the largest Mosque in Dublin, refusing to take part.