in 1988, iran air flight 655 was brought down by a missile fired from the u.s.s "vincennes." it was mistaken for an iranian fighter. 290 people were killed. more on flight 17 later in the broadcast. "cbs this morning" will have the latest developments tomorrow morning. in a major development, israeli troops have launched an invasion of gaza. the 32-mile gaza strip is a homeland for palestinians displaced by the creation of israel. over the last 10 days, islamic militants have fired hundreds of unguided rockets into israel, killing one civilian. and israel has responded with air strikes that have killed 240 palestinians and wounded more than 1,800. nearly all of them civilians. israel has occupied gaza often over the decades. holly williams is in gaza tonight. holly, what are you seeing? >> reporter: well, scott, the sky here tonight in gaza has been lit up over and over again as israel pounds this tiny strip of land with its air strikes. this is the heaviest bombardment we've seen during this escalation, and it comes as the israeli media reports that tens of thousands of isra