Two people have been arrested after trying to get into Faslane naval base, Police Scotland has said.
The force said it was made aware of two people attempting to enter the base - where submarines that carry the UK's Trident nuclear deterrent are based - at around 5pm on Thursday.
A spokesperson said: "A 34-year-old man and 31-year-old woman have been arrested in connection and enquiries are ongoing."
According to the PA news agency, the man arrested is Iranian.
A Royal Navy spokesperson said: "Police Scotland have arrested two people who unsuccessfully attempted to enter HM Naval Base Clyde on Thursday 19 March.
"As the matter is subject to an ongoing investigation, we will not comment further."
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Sky's defence and security analyst Michael Clarke noted that the site in Faslane is "the biggest military base in Scotland", with around 6,000 to 7,000 people there, "both civilians and military".
"Faslane is probably Britain's most important single installation", he added. "We have seven attack submarines. And if they're all out of maintenance, then this is where they operate from."
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