Australian authorities have continued to step up security efforts in the aftermath of the Manchester bombing

Safety concerns across Australia continue, following the Manchester Arena suicide bombing. Political attention has turned to allaying those fears, and increasing security at famous landmarks, and popular tourist sites. Sydney will see a increase in security as annual light festival - 'Vivid' gets under way. Security bollards and barriers are already in place, as well as plain clothed police patrols, aerial surveillance, and sniffer dogs. And in Melbourne, police have tested an emergency response system at the Melbourne Cricket Ground. ASIO* boss Duncan Lewis says he does not expect the counter terrorism threat to diminish, "in the foreseeable future".

Senator Pauline Hanson listens to Commissioner of the Australian Federal Police Andrew Colvin (L) at a Senate Estimates hearing ,Canberra, Source: AAP