A building in Damascus becomes a battlefield in Syria's civil war.

Amateur video, which can not be independently verified by Reuters, appears to show fierce fighting in Syria's Capital City.

Footage purportedly from Homs shows residents going house to house as they search for survivors.

A remnant of the fight appears unexploded at the bottom of a building in shambles.

As rescue efforts go on, Islamic State militants claim they now control a gas field in Homs province.

In Aleppo, rebel forces prepare to fight back.

They take aim in a war that has already killed close to 200,000 people with no resolution on the horizon.