Developing story: shots have been fired in an apparent terrorist attack which began at a synagogue in Vienna.
Several people have reportedly been killed, and a police officer shot and seriously wounded during gunfire exchange.
It is reported that this is a large scale attack, and Vienna police have reportedly captured one suspect.
The Jewish community has reportedly been instructed to remain indoors and remove skullcaps which may reveal that they are Jewish.
Disturbing images and videos have been posted on social media.
Footage anonymously sent
May disturb sensitive viewers.