(Reuters) – Warwickshire County Cricket Club said officials are investigating allegations of racist behaviour among members of the crowd at Edgbaston on the fourth day of the fifth test between England and India. A number of supporters said on Twitter they had been targeted by racist abuse from other fans at the Birmingham venue on Monday. Former Yorkshire spinner Azeem Rafiq shared a thread detailing some of the incidents and wrote that they were, “disappointing to read”. Rafiq’s testimony to a British parliamentary committee last year led to an investigation into claims of institutional raci…