Massive explosions at apartment buildings across Baghdad killed at least 34 people and wounded more than 100 on Tuesday, Iraqi police and health officials said. The blasts are the latest sign that Iraq's fragile security could dissolve in the chaos of the country's unresolved election. It was the fourth attack with multiple casualties across Iraq in five days, a spate of violence that has claimed more than 100 lives. Violence has spiked as political leaders scramble to secure enough support to form a government after the March 7 elections failed to produce a clear winner.