Tributes were paid to one of the heroes of the New Zealand mosque attacks in Dublin today.

An interfaith gathering was held at a mosque in Blanchardstown today.

One worshipper paid tribute to his childhood friend who died along with his son at the Al Noor Mosque.

Pakistani-born Dr Amer Jaura went to primary and secondary school in Pakistan with a teacher called Naeem Rashid who tackled the gunman in New Zealand, sacrificing his life in the process.

Naeem Rashid, 51, was seen lunging at the gunman in the live stream video from the Al Noor mosque.

Mr Rashid, from Abbottabad, Pakistan, and a New Zealand resident for nine years, was in the mosque with his 21-year-old son Talha. Both were killed in the attack.

Mr Rashid was badly injured and died later in hospital.

Naeem's eldest son Talha was also killed in the attack but in the process saved a child's life.

He had moved with his family from Pakistan when he was 11 years old. Friends said he had just got a new job, and was planning to get married soon.

Dr Jaura, who went to school with Naeem considered him a personal friend despite not seeing him for over 30 years.

Dr Jaura said he was not at all surprised by the heroism of his childhood friend because Naeem had always been considerate of others.

He said they had lost touch as they went their separate ways but in recent years they had renewed contact on social media.

"Now I'll never be able to contact him...It was good to have known him," he told RTÉ News after the memorial gathering.

"His son (Talha) dived on a child and told him to stay quiet. He was a brave man (too)," said Dr Jaura who is a consultant anaesthetist in Dublin's Mater Hospital.