A banner bearing the likeness of Maj. Gen. Qassem Suleimani is carried during a funeral procession in Tehran, Iran. Picture: Arash Khamooshi/The New York Times

Washington — Under increasing pressure to defend the killing of a top Iranian general in Iraq, senior Trump administration officials offered new justifications but little detail Tuesday, citing threats to the U.S. Embassy in Baghdad and intelligence suggesting other imminent attacks that helped prompt the strike.

Democrats stepped up their criticism of intelligence that the administration provided immediately after the drone strike last week that killed Gen. Qassem Soleimani, the leader of Iran’s Revolutionary Guard. The administration’s formal notification to Congress, which remains classified, provided no information on future threats or the imminent attack, officials who have read it said.

Several said it was improperly classified, and Sen. Richard Blumenthal, D-Conn., called it “vague and unacceptably unspecific.” Lawmakers pressed for more answers Tuesday at an intelligence briefing by administration officials.

Iranian forces or their proxies were days from attacking U.S. personnel when President Donald Trump decided to strike Soleimani, Defense Secretary Mark Esper told reporters at the Pentagon, adding that Soleimani had traveled to Baghdad to coordinate attacks following up on a two-day siege of the U.S. Embassy there last week by pro-Iranian demonstrators. He declined to elaborate but called the intelligence “exquisite.”

Secretary of Defense Mark Esper said the threats against American personnel were days away from being carried out when President Donald Trump decided to strike Maj. Gen. Qassem Suleimani. File picture: Eric Thayer/The New York Times

Trump was more forceful but no more specific. Soleimani “was planning a very big attack and a very bad attack for us and other people,” Trump told reporters in the Oval Office. “And we stopped him.”

Their defense of the killing came as Tehran launched its initial response, firing a dozen ballistic missiles early Wednesday from Iranian territory targeting U.S. forces in Iraq’s Anbar province and Kurdish region. A Pentagon official confirmed the missiles were launched at bases hosting U.S. forces but provided no initial damage assessment.

Iran’s supreme leader, Ayatollah Ali Khamenei, ordered a direct and proportional response to the Soleimani killing, not the kind of covert action through proxy forces that Tehran has traditionally employed. U.S. officials in recent weeks warned about the threat from short-range ballistic missiles that Iran had smuggled into Iraq.