Nine Palestinian terrorists were killed overnight in IDF strikes on the Gaza Strip launched in response to a barrage of rockets that killed one Israeli and injured at least four.The IAF attacked six targets in the Gaza Strip on Saturday night. In the northern Gaza Strip it attacked a terror tunnel and three rocket launch sites, and in the southern Strip it attacked two centers of terrorist activity.An Egyptian-brokered cease fire failed to stop the rocket fire early Sunday morning, although reports said a subsequent cease fire had been reached.