From Tom's Astronomy Blog:

I’m watching a seem[ing]ly very dangerous spacewalk on NASA TV. Two Cosmonauts are removing a pyrobolt, one of those bolts that explode to separate. This one is on the Soyuz capsule attached to the ISS. They think this will fix the problem the Soyuz has had with the past two dangerous landings. This is pretty tense!

It’s loose. . . .

The spacewalkers are ISS Commander Sergei Volkov and Flight Engineer Oleg Kononenko.

“Thank god” says one of the spacewalkers as they get the bolt into a blast proof box — very dramatic and amazing video!

Official information about the walk is provided by NASA.