A HUGE manhunt is underway in the Austrian capital city of Vienna after a terror attack killed four people.
In what is being described as "a repulsive terror attack", at least two gunmen opened fire in multiple locations outside a Synagogue last night, killing four and wounding multiple others.
One of the attackers was shot dead by the police, and has been identified as an Islamic State sympathiser, RTÉ reports.
Austrian police are searching for at least one other assailant, however there could be more attackers at large as the shooting is understood to have taken place in six locations late last night.
The suspects, who were armed with rifles, took aim at citizens enjoying their last few hours of freedom before strict Covid-19 restrictions were set to come into effect at midnight last night.
The victims are two men and two women, and 15 others have been injured, seven of them seriously, mayor of Vienna Michael Ludwig said in a statement.
Police are moving across the city this morning, with helicopters and armed guards continuing the hunt for other attackers.
Citizens are asked to remain indoors and children have been told not to go to school this morning.
Simon Coveney, Ireland's former Tánaiste and current Minister for Foreign Affairs, sent his condolences to those affected by the terror attack, writing:
"Thoughts are with our friends in Austria tonight after a terror attack in Vienna."