PATIALA, July 23: Some persons were reportedly injured, when two groups clashed in the courts complex, here today.According to police sources, Sukhdev Singh of Hasanpur village, near Patiala and Narinder Singh of Kulemajra village near Dhablan, were injured in the clash. They had come to the court to appear in a case. The matter had been referred to the district attorney (legal) and a case under the relevant sections would be registered on the basis of his report.