My former company had an offshore team in Bangalore (actually, 90% of our company was located there). We had a morning meeting right before a critical release, and the offshore leader told us that nobody there would be able to do anything or even be in contact for the next two or three days. Turns out they were moving to a new office building but nobody there had told the US team anything about it - even though they knew our project schedule. This was completely representative of our communication with them.