1650 GMT: A series of photos of the blast sites and victims has been posted (Warning: Graphic).
UPDATE 1640 GMT: The Home Ministry has revised the casualty figures to 20 dead and 113 injured.
UPDATE 1620 GMT: Important clarifications from the Mumbai Police Commissioner....
The three blasts were not from car bombs, as initial reports claimed in at least two cases, but from improvised explosive devices. The IED near the Opera House was "high-intensity"; the others in Zaveri Bazaar and Dadar West.
The three devices exploded between 6:50 and 7:04 p.m. local time.
UPDATE 1535 GMT: Prithviraj Chavan, the chief minister of the state of Maharashtra, says at least 13 people have been killed and 81 injured.
UPDATE 1525 GMT: The Home Minister says 10 people are dead and 54 injured.
UPDATE 1515 GMT: The Mumbai police commissioner has just said 10-15 people have been killed.
India's NDTV is reporting three explosions in Mumbai on Wednesday evening during rush hour, local time. Two were in South Mumbai at Opera House and in Zaveri Bazaar and one in central Mumbai at Dadar West.
Reports said six people had died in the Dadar blast and four in the Zaveri Bazaar explosion. Government sources put the number of injured at 60 --- eyewitnesses said about 15 to 20 people have taken to hospital in Zaveri Bazaar, which is near the famous Mumbadevi temple.
The Home Ministry has confirmed a terrorist attack, and Mumbai is on high alert.