A terror suspect in Australia tried to smuggle a bomb on to a plane by planting it on his unsuspecting brother, say Australian police.

He said two suspects had built and concealed a "high-end" military-grade explosive in a piece of luggage.  The plan was for the brother of one of the suspects to take the luggage with him onboard an Etihad Airways plane leaving Sydney airport on 15 July.  The brother was not aware of the bomb, said police.

The plan was one of two alleged terror plots recently uncovered by authorities, who made several arrests across Sydney on Saturday.  The suspects were allegedly aided by the so-called Islamic State (IS).

The other plot involved building and setting off a device that could release toxic gas in a public enclosed space.  Police said the plans had been "completely disrupted".

Police say the suspects had assembled the bomb using parts that were sent in one package from Turkey via air cargo, which was arranged by a senior IS figure.

Read more: BBC News