A 28-year-old man from Blackburn was arrested in a firearms swoop in Essex.
Police raided a home in Southend following a joint operation between officers from Lancashire and Essex.
The man was arrested at an address is Liviera Drive on Thursday after a police raid at around 4pm.
Officers from Southend CID swooped after a warrant was issued in relation to 'serious firearms offences' allegedly committed in Lancashire.
No further details of the offences were being released today and it was not known what was recovered from the house or if anyone else was arrested.
Officers from Lancashire travelled to Southend yesterday.
The man was brought back to Preston for questioning.
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