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Police at the scene of overnight terror raids in Surry Hills on July 30, 2017 in Sydney, Australia. Counter terrorism police raided four houses across Sydney on Saturday night and arrested four men over an alleged terror plot that involved blowing up an aircraft. Australian travelers have been warned to expect major delays at airports around the country with security screening measures ramped up following the raids.
Police at the scene of overnight terror raids in Surry Hills on July 30, 2017 in Sydney, Australia. Counter terrorism police raided four houses across Sydney on Saturday night and arrested four men over an alleged terror plot that involved blowing up an aircraft. Australian travelers have been warned to expect major delays at airports around the country with security screening measures ramped up following the raids.

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    No charges in alleged plot to bring down plane

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No charges in alleged plot to bring down plane

Australian authorities arrested four men over a foiled a terror plot to bring down an airplane, however no charges have been filed yet. CNN's Sherisse Pham has more.

No charges in alleged plot to bring down plane

Australian authorities arrested four men over a foiled a terror plot to bring down an airplane, however no charges have been filed yet. CNN's Sherisse Pham has more.