(CNN) New Zealand came together in a national day of reflection Friday to mark a week since the mass shootings at two Christchurch mosques that killed 50 people.

The Muslim Call to Prayer was broadcast on national television at 1:30 p.m. local time, followed by two minutes of silence to remember those who lost their lives in the terrorist attack.

At almost the same time as when the attack was first reported to police, Christchurch ground to a halt for two minutes. Hundreds stood, their heads bowed at the memorial wall at the Botanic Gardens where flowers have been laid all week.

In Hagley Park, a short walk from the Al Noor mosque where most people were killed in the first attack, thousands of people attended a memorial service before Friday prayers.

Members of the Muslim community gather for congregational Friday prayers and a two-minute observation of silence at Hagley Park.

Speaking to mourners in the crowd, New Zealand Prime Minister Jacinda Ardern said "New Zealand mourns with you."

Read More