BEIRUT (AP) — New airstrikes launched by Russian and Syrian government forces on a besieged rebel-held region east of Damascus killed at least eight people on Wednesday, opposition activists said, part of an ongoing aerial campaign that has killed dozens of civilians in the past few days. Around 60 civilians were killed Tuesday in airstrikes and shelling that overwhelmed rescue workers and prompted calls for an immediate cease-fire in order to deliver critical medical care. The opposition's civil defense workers, known as the White Helmets, on Wednesday said eight civilians were killed and many wounded after warplanes targeted the town of Hamouriyeh, causing a building to collapse over its residents' heads.