Law enforcement officers have detonated a German bomb that washed up on Cobo Beach.
A controlled explosion has been monitored by three or four members of the bomb disposal squad at around 5.40pm.
It meant the road was temporarily closed between the beach car park and Iceland.
Officials say the explosive device could have washed up several days ago, but they aren't sure.
Three other bombs have been found and removed by law enforcement in the past week.
New woodland for Alderney's 80th Homecoming
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Guernsey States 'in talks' with easyJet
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Guernsey's airline Aurigny takes on six new First Officers
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Call for more transparency over Guernsey Electricity's charges
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Senior Guernsey politician to stay on committee during police investigation
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Iconic Guernsey restaurant to close before Christmas
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Protected status of Guernsey bunker changed by planners
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