Police said Friday they have closed an investigation into sexual misconduct allegations raised against a former member of K-pop boy band F.T. Island without filing charges due to a lack of evidence. Choi Min-hwan, a former drummer for the band, was suspected of engaging in prostitution and sexually harassing his then wife, Yulhee, a former member of girl group Laboum. The Seoul Gangnam Police Station said no charges were filed against Choi due to insufficient evidence of the alleged misconduct.