Four military planes attacked an arms factory in Khartoum where there was a huge fire overnight, a Sudanese minister said on Wednesday, blaming Israel for the air strike.
The target was the Yarmouk ammunition plant. More here.
Israel has attacked targets in Sudan before, in their ongoing war against Iran's efforts to supply their terrorist buddies in Gaza and southern Lebanon (and add Sinai, now).
UPDATE: Still nothing definitive. It could have been an accident. What is kind of amusing is that not long after this post went up, someone in Sudan googled "did Israel bomb Sudan" and got this post. It's a funny, webby, world.