One of Libyan leader Moammar Gadhafi's sons -- Saif al-Arab Gadhafi -- was killed after a NATO airstrike, a spokesman for Libya's government said Sunday at a press conference.
Moammar Gadhafi and his wife were in their son's house when it was targeted, spokesman Musa Ibrahim said. Both of them are in good health, according to the spokesman.
The victim is one of two of Gadhafi's sons named Saif. The other is Saif al-Islam Gadhafi, who had previously touted reform but has emerged as one of his father's most visible defenders in recent months.
The house in Tripoli was destroyed by the strike, with a massive crater where the house used to be. At least one unexploded bomb could be seen at the scene.
The building was in a residential area of Tripoli, according to Ibrahim, who insisted that Saif al-Arab Gadhafi was a student in Germany who was not deeply involved in Libya's military and government.
Ibrahim railed against NATO after the fatal strike, calling it an illegal act and a "war crime."
UPDATE: Here's more from the AP -- NATO strike kills Gadhafi's son but leader escapes:
A NATO missile struck a house in Tripoli where Moammar Gadhafi and his wife were staying on Saturday, missing the Libyan leader but killing his youngest son and three grandchildren, a government spokesman said. [...]
"The leader himself is in good health," Ibrahim said. "He was not harmed. The wife is also in good health."
On Tuesday, British Defense Minister Liam Fox and U.S. Defense Secretary Robert Gates told reporters at the Pentagon that that NATO planes were not targeting Gadhafi specifically but would continue to attack his command centers. [...]
The fatal airstrike came just hours after Gadhafi called for a mutual cease-fire and negotiations with NATO powers to end a six-week bombing campaign.
In a rambling pre-dawn speech Saturday, Gadhafi said "the door to peace is open."
"You are the aggressors. We will negotiate with you. Come, France, Italy, U.K., America, come to negotiate with us. Why are you attacking us?" he asked.
He also railed against foreign intervention, saying Libyans have the right to choose their own political system, but not under the threat of NATO bombings.
In Brussels, a NATO official said before Saturday's fatal strike that the alliance needed "to see not words but actions," and vowed the alliance would keep up the pressure until the U.N. Security Council mandate on Libya is fulfilled. NATO has promised to continue operations until all attacks and threats against civilians have ceased, all of Gadhafi's forces have returned to bases and full humanitarian access is granted.
The NATO official, who spoke on condition of anonymity according to policy, noted that Gadhafi's forces had shelled Misrata and tried to mine the city's port just hours before his speech.
"The regime has announced cease-fires several times before and continued attacking cities and civilians," the official said.
"All this has to stop, and it has to stop now," the official said.