Vienna was on lockdown on Monday evening as Austrian police and military attempted to secure the city against a terror attack which started at 8pm in front of the city’s main synagogue and was perpetrated by several attackers.Several people were killed in the attack, and at least one gunman remains on the run, Interior Minister Karl Nehammer said.City authorities have warned the Viennese to stay at home as "heavily armed gunmen” were still at large. The chief of Vienna City's Hospitals confirmed 15 had been injured.Police have confirmed that shots were fired at six different locations,...…Vienna was on lockdown on Monday evening as Austrian police and military attempted to secure the city against a terror attack which started at 8pm in front of the city’s main synagogue and was perpetrated by several attackers.Several people were killed in the attack, and at least one gunman remains on the run, Interior Minister Karl Nehammer said.City authorities have warned the Viennese to stay at home as "heavily armed gunmen” were still at large. The chief of Vienna City's Hospitals confirmed 15 had been injured.Police have confirmed that shots were fired at six different locations,...WW…