This went out moments after the news broke:
From: Government Whips Admin Unit (HOC)
Sent: 16 January 2013 08:47
Subject: Travel disruption
Following a helicopter crash in Vauxhall this morning colleagues should be aware there will be serious travel disruption in the area.
You may need to leave earlier in time for the deferred division.
Government Pairing Whip
What a charmer.