Update: The hearing has resumed, with Rupert Murdoch having removed his jacket, which had the shaving foam on it. Mr. Murdoch was not hurt.

Developing Story…This is from a live blog posted on the website of The Guardian within the last few minutes. Read up from bottom:

5.01pm: Jane Martinson reports from the hearing: "He was sitting four rows back, calmly walked up with a plate of shaving foam – smacked it in Rupert’s face – Wendi intervened."

4.59pm: Reports claim the assailant is a UK Uncut activist.

4.58pm: The BBC’s Laura Kuenssberg thinks it’s a bandage on the young man’s face – Nick Robinson says it is shaving foam and the young man hit Rupert Murdoch with it.

4.57pm: The suspect looks like he has a substance like white paint on his face.

My colleague Jackie Ashley tells Twitter: "Wendi [Murdoch’s wife] can throw quite a punch."

4.56pm: The BBC says the young man has been handcuffed. Sky showed the footage again – it seemed to be an attack from Rupert Murdoch’s left.

4.55pm: A young man in a checked shirt has been detained by police.

4.54pm: Someone has just tried to attack Rupert Murdoch. His wife Wendi seemed to slap the person.

Additional details about today’s testimony can be found here.