At least 200 have died in Syria in the two months since a UN-backed cease-fire went into effect, but Ban Ki-moon rejects assertions that part of the problem is the low number of monitors on the ground.
Yesterday's bombings in Damascus were the largest since the uprising began. The US and others are sounding an alarm about a particularly worrisome turn in the conflict.
No group has claimed responsibility for today's bombings in Damascus that killed at least 40 people, but an Al Qaeda-inspired group has claimed similar attacks in the past.
United Nations chief Ban Ki-moon called on all parties in Syria to stand by the cease-fire, which has been repeatedly violated by both the government and the opposition.