Those arrested are not named but “Mohammed Ojaky, 31, told the Mail police searched his barbershop and the flat above.”
Counter-terrorism detectives are questioning four men held as part of an operation to foil a suspected Christmas attack.
A series of raids in South Yorkshire and Derbyshire on Tuesday saw armed police and an Army unit swoop on a flat above a fish and chip shop amid fears there may have been explosives at the property.
Three men, aged 22, 36 and 41, were detained at different addresses in Sheffield and a 31-year-old man was arrested in Chesterfield, police said.
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United Kingdom immigration war
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See all news on Sheffield, Yorkshire and the Humber and on United Kingdom.
Sheffield, Yorkshire and the Humber is in the middle of the map below.
Sheffield, Yorkshire and the Humber, United Kingdom
United Kingdom (GB) is estimated to have a population of 65.1 million with a growth rate during 2010-2015 of 0.6% pa.
At the same rate of change, in five years' time its population will increase by 2 million.