WELLINGTON (Reuters) – Forty people were killed and more than 20 seriously wounded in shootings at two mosques in New Zealand on Friday, in what Prime Minister Jacinda Ardern said was a terrorist attack.The massacre by at least one gunman during Friday prayers in the city of Christchurch is the country’s worst ever mass shooting and was condemned throughout Asia.”We believe that 40 people have lost their lives in this act of extreme violence,” Ardern said.”It is clear that this can now only be described as a terrorist attack.”The death toll was later revised to 49 as AP reported a man had been charged with murder.Ardern said New Zealand had been placed on its highest security threat level. She said four people in police custody held extremist views, but had not been on any police watchlists.Video footage widely circulated on social media, apparently taken by a gunman and posted online live as the attack unfolded, showed him driving to one mosque, entering it and shooting randomly at people inside. 17 PHOTOS New Zealand mosque shootings See Gallery New Zealand mosque shootings Sensitive Content Warning Ambulance staff take a man from outside a mosque in central Christchurch, New Zealand, Friday, March…