Sudan on Wednesday accused Israel of bombing a military factory and threatened retaliation after the attack that killed two people.
"We think Israel did the bombing," Culture and Information Minister Ahmed Bilal Osman told a news conference.
"We reserve the right to react at a place and time we choose."
He said four aircraft were involved in the attack, which occurred at about midnight (2100 GMT) Tuesday at the Yarmouk military manufacturing facility in south Khartoum.
Evidence pointing to Israel was found among remnants of the explosives, he said.