The area has been under heavy artillery bombardment for 25 days; food, medicine, and other supplies are running low. Last night in the lead up to today's invasion, shelling was reportedly particularly intense.
The Associated Press quoted a Syrian official who confirmed the ground assault and said that the district of Baba Amr will be "cleaned" within hours.
The United Nations yesterday updated its death count for the first time since January, estimating that over 7,500 have been killed in nearly a year of violence stemming from protests against the rule of president Bashar al-Assad.
Below is a video showing some of the destruction in various Homs neighborhoods.
[ Video is no longer available. ]