10th-11th October 2011: Curfew 2am to 7am introduced

Following today's incidents where at least 19 people have been killed and 150 injured in clashes between protestors and  authorities in the Maspero/Tahrir area, a curfew has been announced tonight from 2am to 7am.

I am not clear of the extent of it, but it's probably safest to assume that it applies generally until it becomes more clear.
Apparently the curfew will apply to Tahrir up to Abbasiya.
Live updates on the situation from this link:
http://www.almasryalyoum.com/en/node/503384