KIEV, July 22 - President Petro Poroshenko has assured the Australian prime minister's special representative on the investigation into the Flight MH17 crash, Allan Grant Houston, that the Ukrainian side has evidence of the time, place and circumstances of the crash of the Malaysian aircraft, and Ukrainian security services are ready to provide all materials of the international expert commission probing the crash.

"The president said he was ready to contribute to a maximally transparent investigation into the tragedy. The head of state said that Ukraine has evidence answering the question - when it happened, where and how. Ukraine's security services are ready to provide all materials of the international expert commission investigating the circumstances of the tragedy with the plane," the presidential press service reported, following Poroshenko's meeting with Houston.