Kremlin on Tuesday rejected accusations of involvement in an alleged attack on Russian opposition leader Alexei Navalny who is in a coma in a German hospital, a day after Germany indicated that he was likely poisoned. Navalny's allies blame Kremlin, with some demanding an investigation into whether Russian President Putin was involved. Kremlin spokesman Dmitry Peskov told reporters on Tuesday the that these accusations were only ‘empty noise’. He also added that there are no grounds for launching a criminal investigation into Navalny's condition. There will be an investigation only if a substance responsible for the alleged poisoning is found.