Sunderland winger Adam Johnson was arrested on suspicion of having sex with a 15-year-old girl after she reportedly boasted about the affair and her father found out . Johnson , 27 , was arrested at his home in County Durham on Monday after police received a complaint from the girl 's father but has since been released on bail . It is understood the girl , who can not be named for legal reasons , bragged about the alleged encounter to friends and on social media , the Daily Telegraph reports . Adam Johnson ( pictured left and right with girlfriend Stacey Flounders ) was arrested on suspicion of having underage sex with a girl , 15 , after she reportedly boasted about the alleged encounter on social media . Johnson , who was signed for £10million in 2012 , was then arrested and questioned for several hours . He has since been released on bail and suspended by Sunderland , pending the outcome of the police investigation . The Premier League footballer 's arrest has come just weeks after his long-term girlfriend Stacey Flounders , 25 , gave birth to the couple 's first child Ayla Sofia . It was unclear if Miss Flounders and her daughter , who was born on January 8 , were at home at the time of the player 's arrest . But Miss Flounders 's mother has defended the former Middlesbrough and Manchester City player , insisting he is '100 per cent innocent ' . Talking about the couple 's relationship , she told the Daily Mirror : 'They are still very close and are absolutely still together . He is 100 per cent innocent and we will stand by him . 'He has n't been found guilty of anything . He is a great lad and has not done anything wrong . This is a horrible situation . ' The 27-year-old millionaire was arrested at his six-bedroom mansion in County Durham ( above ) after the alleged victim 's father reportedly complained to police , it has emerged . The £50,000-a-week player had been due to travel with the rest of the Sunderland squad to East Yorkshire for Tuesday 's league game against Hull City before being suspended . A statement from Sunderland said : 'Sunderland AFC has confirmed that Adam Johnson has been suspended from the club , pending the outcome of a police investigation . No further comment will be made at the present time . ' The FA refused to comment on Johnson 's arrest . Johnson , who has represented his country 12 times , gained a reputation as a keen party-goer when he played for Manchester City five years ago . Johnson , who was signed for £10million in 2012 , was arrested on Monday morning and questioned for several hours . He has since been suspended by Sunderland . The FA refused to comment on the arrest of the winger . Pictured : Johnson scored a late winner against Newcastle United at St James ' Park last December . At the time , he was renting Cristiano Ronaldo 's former house near Alderley Edge and would often be seen in the village socialising with fellow players and women . But three years ago , after returning to his native North East , Johnson began dating Miss Flounders . Friends say Johnson opted to live near a quiet hamlet to get away from the 'bright lights ' of city life . On Monday , three unmarked police cars , a police van , several plain-clothed officers and a forensics team were seen at his house as he was questioned at a Durham police station . Johnson has been released on bail and will return to Peterlee police station ( pictured ) at a later date . It is unclear where the alleged assault is said to have taken place and police would not release any further details . Johnson was born in Sunderland and raised in Easington , County Durham , before joining Middlesbrough 's youth academy as a 12-year-old . After making his Premier League debut for Middlesbrough in 2005 he was sold in February 2010 to Manchester City . He was signed by Sunderland three years ago . He failed to make the squad for the World Cup in Brazil last year , . In a statement , a Durham Police spokesman said : ' A 27-year-old man was arrested earlier today on suspicion of sexual activity with a girl under 16 . He has been released on police bail pending on-going investigations . ' A blank firing pistol , which replicates the sound of real gunshots but does not require a licence to own , was also recovered during a search of the property . ' Sorry we are not currently accepting comments on this article .
Adam Johnson was arrested on suspicion of having sex with a 15-year-old . Schoolgirl , 15 , reportedly boasted about alleged encounter on social media . Johnson , 27 , held at Durham mansion after her father complained to police . Sunderland suspended player 'pending outcome of investigation ' Long-term girlfriend Stacey Flounders is reported to be standing by him . The 25-year-old gave birth to couple 's first child Ayla Sofia on January 8 . Adam Johnson timeline : Sportsmail takes a look at his career . Gus Poyet : Newcastle United manager has been linked with the vacant England job for months.