Jacinda Ardern graces the world's tallest building, the Burj Khalifa

Sheikh Mohammed bin Rashid Al Maktoum/Twitter
Jacinda Ardern graces the Burj Khalifa. Photo credit: Sheikh Mohammed bin Rashid Al Maktoum/Twitter

The world's tallest building has lit up with an image of Prime Minister Jacinda Ardern hugging a woman in the wake of the Christchurch mosque attacks.

The Burj Khalifa is 829m tall - more than twice the height of Auckland's Sky Tower - and located in Dubai, United Arab Emirates.

"New Zealand today fell silent in honour of the mosque attacks' martyrs," Sheikh Mohammed bin Rashid Al Maktoum wrote on Twitter on Saturday morning (NZ time), with a photo of the towering structure.

"Thank you PM @jacindaardern and New Zealand for your sincere empathy and support that has won the respect of 1.5 billion Muslims after the terrorist attack that shook the Muslim community around the world."

Fifty people were killed as they attended Friday prayers on March 15, and another 50 injured. The youngest were just toddlers.

New Zealand held two minutes' silence to mark the atrocity a week later, with the Muslim call to prayer broadcast on the nation's main TV channels and radio stations.

Ardern's widely praised response to the killings has sparked speculation she could be the next winner of the Nobel Peace Prize.