At least six people have died and dozens have been wounded in clashes in the Yemeni capital of Sana’a. Guns, tanks and rocket-propelled grenades were used in the fighting, making it one of the deadliest flare-ups between government forces and opposition members since protests spread throughout Yemen in January. Meanwhile, in the city of Ibb, pro-government forces opened fire on the headquarters of the largest member of Yemen’s opposition coalition. The violence came just one day after President Ali Abudullah Saleh backed out of a deal to end his 33-year tenure.