Officials in Washington told The New York Times on Monday that Delta Force commandos confiscated “a large amount of material” from the raid that killed the Islamic State leader. The material allegedly includes several laptops and cellphones, which contain an estimated “four to seven terabytes of data”, according to one United States official who spoke anonymously to the paper.

It is believed that al-Baghdadi changed hideouts across northern Syria every few days, so it is unlikely that he and his entourage carried with them a large printed archive of Islamic State files. However, even a few hard drives or memory sticks could contain extensive information, said The Times. The commandos that carried out the nighttime raid reportedly spent two hours on the ground collecting intelligence from the site. All of it has now been delivered to experts in the Defense Intelligence Agency, the Central Intelligence Agency and other elements of the US Intelligence Community, who are currently “conducting a preliminary review of the confiscated documents and electronic records”, said the paper.

The information may shed light on questions such as if and how al-Baghdadi ran the Islamic State, how he communicated with the group’s military commanders across Iraq and Syria, and how he exchanged information with other senior Islamic State officials in the Middle East and beyond. There are also questions about al-Baghdadi’s links with the leaders of Islamic State affiliates around the world. Essentially, to what extent did the core leadership of the Islamic State under al-Baghdadi direct the operations of the group’s affiliates abroad? There may also be documents among the confiscated information material that discuss the Islamic State’s changing strategy following the collapse of its territorial base in the Middle East.

In addition to the confiscated information, American troops captured two of al-Baghdadi’s lieutenants who were guarding his compound during last weekend’s raid. The two men are currently being questioned by American interrogators and are eventually going to be handed over to the Iraqi government to face justice, according to The Times.