Residents of a Sydney apartment block have been forced to spend the night in an evacuation camp after the high-rise building was declared unsafe.
Emergency Services were called to Opal Towers in Sydney Olympic Park on Monday amid fears the building would collapse after residents reported hearing loud cracking noises.
Around 300 residents were evacuated and a one kilometre exclusion zone was set up while the Sydney Olympic Park train station was also shut down.
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A nearby childcare centre was also evacuated.
Those who couldn’t find alternative accommodation were taken to the Sydney Showgrounds to spend Christmas Eve with welfare groups helping them to find temporary housing.
Engineers spent Monday night examining a large crack on Level 10 of the high-rise with the building shifting two millimetres as a result.
Around 12.30am, most residents were allowed to return to their apartments, but 51 of the 392 apartments were declared unsafe, forcing residents to spend Christmas elsewhere.
— 7NEWS Sydney (@7NewsSydney) December 24, 2018
Police escorted those affected residents back to their units to collect personal belongings.
The $165 million Opal Towers was only completed in August this year.