Two explosions, one just outside the Hamid Karzai International Airport in Kabul and another at the nearby Baron Hotel, caused several casualties Thursday. The attacks came less than a day after the U.S. Embassy warned U.S. citizens to get out of the area. Here's what we know so far:

Update 12:21 p.m. ET:

Although U.S. forces have suffered casualties, there have been no reports of injuries or fatalities among British soldiers or government officials, the British defense ministry said.. The ministry statement did not mention whether any British civilian trying to leave Afghanistan was hurt or killed.

Update 11:55 a.m.:

The number of patients taken to Emergency, a highly respected trauma center in Kabul, is now around 60. In an earlier tweet, the nongovernmental organization said "6 others already dead on arrival."

This means the casualty count from the explosion is at least 60 wounded and at least 6 dead. U.S. officials earlier confirmed that three U.S. Marines were injured in the explosions.

Update 11:39 a.m.:

The explosion outside the Kabul airport is "definitely believed" to have been carried out by the Islamic State group, a U.S. official told The Associated Press. The official, who spoke on the condition of anonymity, said the Thursday attacks were carried out by two suicide bombers and gunmen.

Update 11:29 a.m.:

The main hospital in Kabul said it has received more than 30 patients. Six of them were dead on arrival, the hospital, run by an Italian nongovernmental organization, said in a tweet. )

Update 11:04 a.m.:

The explosion at the Abbey Gate of the Kabul airport was "a complex attack that resulted in a number of U.S. and civilian casualties," Pentagon press secretary John Kirby said in a tweet.

He added at another explosion took place near the Baron Hotel, located nearby.

Update 11:03 a.m.:

President Biden was in the White House Situation Room with his top national security aides discussing the situation in Afghanistan when the explosion at the airport happened. Biden was briefed on the explosion, a White House official told NPR's Franco Ordoñez.

Update 10:42 a.m.:

According to a U.S. official, three U.S. Marines were wounded in the explosion at the airport gate. There may be at least a dozen people injured; their nationalities are not known right now.

Update 10:35 a.m. ET:

The U.S. Embassy in Kabul says the blast took place at the "Abbey Gate" of the airport. It's one of the entrances to the airport that the embassy had specifically asked U.S. citizens to avoid due to a heightened fears of an attack.

A statement from the embassy Thursday says there are reports of ongoing gunfire. It adds that U.S. citizens "should avoid traveling to the airport and avoid airport gates at this time."

The embassy's latest security alert is here.

Original story posted at 10:10 a.m. ET :
Pentagon press secretary John Kirby confirmed reports of an explosion outside of the airport in Kabul, Afghanistan, on Thursday.

"Casualties are unclear at this time," he wrote in a tweet. "We will provide additional details when we can."

The White House, State Department, Pentagon and U.S. Embassy in Kabul have all been warning of heightened threat from ISIS-K militants in Taliban-controlled Afghanistan to the ongoing evacuation effort there.

In a security alert on Wednesday, the U.S. Embassy in Kabul urged Americans outside the gates of the airport to leave the area immediately, citing security threats. Officials also cautioned U.S. citizens against travel to the airport.

This is a developing story. Some things reported by the media will later turn out to be wrong. We will focus on reports from officials and other authorities, credible news outlets and reporters who are at the scene. We will update as the situation develops.

This story originally appeared on the Morning Edition live blog.