A man from Greater Manchester who posted comments on social media supporting the mosque massacre in New Zealand has been arrested, police said.

The 24-year-old, from Oldham, was arrested on suspicion of sending malicious communications on Saturday afternoon, according to Greater Manchester Police (GMP).

Forty-nine people were killed in shootings at two mosques in New Zealand on Friday.

Brenton Tarrant, 28, from Australia, is alleged to have live-streamed the terror attack in Christchurch and outlined his anti-immigrant motives in a manifesto posted online.

On Saturday, Tarrant appeared in court in Christchurch charged with one count of murder and was remanded until April 5. Police said further charges were expected to follow.

A GMP spokesman said: “This is a very difficult time for people. The events in New Zealand have reverberated around the world. Many people are in deep shock and are worried.

”It is at times like this that, as a community, we stand together.

“Where the law permits and people cross the line, we will take robust action, which may include arrest and prosecution.”