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HM Coastguard Southend says there has been an increase in the number of families, some with young children, who've been trespassing on a Ministry of Defence (MOD) firing range in south Essex.

The marshy landscape and mudflats of Foulness Island (known as MOD Shoeburyness) has been been a weapons testing site for more than 170 years. It even has its owned heritage centre and a number of people still live and work on the island too.

John Gillies is the from Southend Coastguard rescue team...

Picture credit: Dan Kitwood/Getty Images.