The government should entrust secret services and the police with investigating the information leak in the Vrbětice case, the Czech Chamber of Deputies said Wednesday after a two-hour closed hearing discussing Interior Minister Jan Hamáček's canceled visit to Moscow in April. The hearing was attended by three secret services chiefs, Prime Minister Andrej Babiš, and a number of lawmakers. Chairman of the deputy group of the opposition Christian Democrats (KDU-CSL), Jan Bartošek, said he believed the commission for the control of intelligence services would debate the issue. "A number of questions have remained unanswered," he added. On April 14, Hamáček announced that he would leave for Moscow on April 19 to negotiate with Russia over supplies of the Sputnik V vaccine. The plan was criticized by the opposition and Babiš, and Hamáček eventually canceled it. It was later reported that the trip was intended to cover up the Vrbětice events in exchange for vaccines.