Yemeni President Ali Abdullah Saleh was "slightly injured" during an attack on the presidential palace in Sanaa Friday, Al Arabiya reports. The country's prime minister and speaker of parliament were also injured in the attack. Four presidential guards were killed, according to Reuters. This comes as tens of thousands of Yemenis held a mass funeral Friday for 50 people killed in regime-sponsored violence in the capital. Heavy shelling expanded into new sections of the capital. At least 155 people have been killed in street battles over the past ten days, according to Reuters. About 370 have been killed since the uprising began. Soon after Friday prayers, witnesses said heavy shelling rocked the commercial neighborhood of Hadda in southern Sanaa. Residents fled to basements for cover.