WASHINGTON -- Blaming the "fog of war," President Barack Obama revealed Thursday that U.S. drone strikes in Pakistan inadvertently killed an American and an Italian, two hostages held by al-Qaida, as well as two other Americans who had leadership roles with the terror network.
Obama somberly said he took full responsibility for the January CIA strikes and regretted the deaths of hostages Warren Weinstein of Rockville, Maryland, and Giovanni Lo Porto, an Italian aid worker. The president cast the incident as a tragic consequence of the special difficulties of the fight against terrorists.
The incident is likely to spark fresh scrutiny of Obama's frequent use of drones to target terrorists and his pledge to strike only when there is "near certainty" that no civilians will be harmed.
Weinstein, who was captured as he neared the end of a contract assignment with the U.S. Agency for International Development, and Lo Porto were killed during a drone strike against an al-Qaida compound in Pakistan, near the Afghan border. U.S. officials said the compound was targeted because intelligence showed it was frequented by al-Qaida leaders. That same intelligence offered no indication the hostages were there, the officials said.
Ahmed Farouq, a dual U.S.-Pakistani national who was an al-Qaida operations leader in Pakistan, was killed in the strike, along with a small number of members of the terror organization, the officials said. Adam Gadahn, an American who served as an al-Qaida spokesman, was killed in a separate strike on a second compound.
"It is a cruel and bitter truth that in the fog of war generally and our fight against terrorists specifically, mistakes - sometimes deadly mistakes - can occur," Obama said at the White House.
U.S. officials said Farouq and Gadahn were not specifically targeted in the operations and there was no evidence they were at either compound. The officials said had they reviewed hundreds of hours of surveillance of the compounds, including continuous monitoring of the facility where Farouq was killed in the days leading up to the strike.
"We believed that this was an al-Qaida compound, that no civilians were present and that capturing these terrorists was not possible," Obama said. "And we do believe that the operation did take out dangerous members of al-Qaida."
The president said he had ordered a review of the incidents to help identify any changes that might be made to prevent similar deaths in the future.
The CIA drone program has killed al-Qaida leaders, Pakistani Taliban fighters and other militants hiding in tribal regions, sparking anger across Pakistan over allegations of widespread civilian casualties. Since 2004, the U.S. has carried out some 400 suspected drone strikes in Pakistan, according to the New America Foundation's International Security Program, which tracks the American campaign.
White House spokesman Josh Earnest said Obama did not personally sign off on the two drone strikes but believes they fell within the guidelines he has set for counterterror missions. Earnest also said the president did not regret the deaths of Farouq and Gadahn.
Officials said it became evident in the weeks after the strikes that Weinstein, the American hostage, might have been killed. A final assessment was reached in recent days and administration officials started briefing members of Congress.
House Speaker John Boehner, R-Ohio, welcomed Obama's review of the incident, calling it "entirely appropriate." And California Rep. Adam Schiff, the top Democrat on the House Intelligence Committee, said it would be crucial to examine the operation "to make sure that the high standards that have been set were, in fact, met."
On Wednesday, Obama spoke with Weinstein's wife, Elaine, as well as Italian Prime Minister Matteo Renzi.
In a statement, Elaine Weinstein said the assistance her family received from the U.S. government was "inconsistent and disappointing."
"We hope that my husband's death and the others who have faced similar tragedies in recent months will finally prompt the U.S. government to take its responsibilities seriously and establish a coordinated and consistent approach to supporting hostages and their families," she said.
The White House said compensation would be paid to the Weinstein and Lo Porto families.
Weinstein, a 73-year-old development worker, was abducted in August 2011. His capture came just four days before his seven-year stint with the U.S. Agency for International Development was to end.
Lo Porto was working for the German aid group Welthungerhilfe when he was captured in Pakistan in January 2012. He was kidnapped together with German Bernd Muehlenbeck, who was freed last year.
Renzi expressed his "profound pain" over Lo Porto's death, saying the aid worker had "dedicated his life to the service of others."
The two American al-Qaida operatives killed in the strikes had assumed senior roles in the terror organization, though U.S. officials said they were not considered high-value targets.
Farouq was deputy emir of al-Qaida in the Indian Subcontinent, a relatively new offshoot of the terror group. AQIS claimed responsibility for a failed attempt in September 2014 to hijack Pakistani naval vessels and use them to attack American warships. The U.S. believes Farouq was involved in that plot.
In April, AQIS said Farouq had been killed in a U.S. drone strike earlier in the year. However, it was unclear at the time that he had dual American citizenship.
Gadahn used the name "Azzam the American" and appeared in numerous al-Qaida videos. He denounced U.S. moves in Afghanistan and elsewhere, and threatened attacks on Western interests.
In 2006, U.S. authorities filed treason charges against Gadhan and offered a $1 million reward for information leading to his arrest or conviction. Gadahn was the only American charged with treason since the World War II era.
Associated Press writers Robert Burns, Matthew Lee, Nedra Pickler and Jim Kuhnhenn in Washington, Nicole Winfield in Rome, and Frank Jordans in Berlin contributed to this report.
American, Italian hostages killed in US drone strike