Breaking News: Mumbai Hotel Attacks

A series of coordinated gun and grenade attacks have killed at least 55 people in Mumbai. Ongoing battles are reported at two five-star hotels.

The attacks began about two hours ago. It is still unclear who the assailants are. Internet reports indicate senior police officers, including prominent "encounter specialist" Vijay Salaskar, have been killed.

Ongoing discussion of the situation can be followed at Twitter. An eyewitness, Gaurav Sikka, is providing a running account on the site.

UPDATE (Mike):

Vinu has photos from Mumbai, which appear to show an explosion that's taken place in or near a petrol station.

UPDATE 2 (Mike):

The BBC is reporting all kinds of hotel attacks, but Twitter user shivmeet tells me that the Oberoi and the Trident are in fact the same hotel. I also think the Taj and the Ramada are the same place.