ISS spacewalk canceled after water leak in spacesuit

At the start of an EVA on the International Space Station today by Italian astronaut Luca Parmitano and Amercian Christopher Cassidy, water soon began to build up inside Parmitano’s helmet from a leak and they had to cancel the EVA and return quickly to the airlock. The cause of the lead is not yet understood  : Spacewalk aborted by spacesuit water leak – Spaceflight Now

Here was a NASA briefing on the aborted EVA: