Protesters clashed with the Egyptian military and security forces in the streets around Cairo's Tahrir Square for the third straight day of violence, which has so far killed at least 24 people and has turned into the most sustained challenge yet to the military's transitional rule. Protesters want the military to quickly announce a date for the transfer of power to a civilian administration. Photographer Trevor Snapp is near Tahrir Square, where he is shooting the current protests. These are just some of the images from the frontline.  

For more images from Tahrir check out Violent Clashes in Tahrir Square Lead to Hundreds Wounded (PHOTOS) 

And follow our live blog from our Egypt correspondent Jon Jensen for up to the minute coverage.