Breaking: #sydneysiege

Flag used in Martin Place siege belongs to Syrian extremist group Jabhat al-Nusra with jihadi ideals

Breaking: Sydney On Lockdown as Dramatic Siege Unfolds #sydneysiege

The heart of Sydney, Australia, is currently in lockdown, as a siege unfolds at a downtown cafe. Reporting is still fuzzy and ongoing, but here's what we know so far: Police are responding to a situation at the Lindt Cafe in Martin Place, a central plaza in the city surrounded by banks and law firms, and not far from the state parliament buildings and the Sydney Opera House.