British police have arrested two men after parcel bombs were sent to Neil Lennon, manager of Scottish football club Celtic.
Strathclyde Police said their investigations were centred on the town of Kilwinning in Ayrshire, where one suspect package was discovered in a postbox.
Lennon has been shadowed by an increased security presence ever since the bombs were discovered in recent weeks, with the latest package - the fifth - found by postal staff in Northern Ireland last month.
Devices were also sent to two prominent Celtic supporters, as well as a Republican supporters group.
The packages used bottles of explosive liquids wrapped in nails and were capable of causing "real harm", according to police.
The two men detained by police, aged 41 and 43, were arrested on Thursday morning (UK time) and have been held under the explosive substances act.
Lennon has been a popular target recently, with a football fan attacking him during the team's 3-0 win against Hearts this week.
A fan clambered from the Hearts section of the main stand at Tynecastle in Edinburgh after Celtic's second goal and attacked Lennon on the touchline, before police tackled him to the ground.
Arrests over football manager parcel bombs
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