The drone strike near the Syrian city of Raqqah targeted the British national responsible for grisly beheadings featured in the terrorist group’s gruesome propaganda videos, said Pentagon press secretary Peter Cook on Thursday night following the attack earlier in the day.

Cook added the Pentagon was still trying to figure out whether Emwazi had been killed, saying, “We are assessing the results of tonight’s operation and will provide additional information as and where appropriate.”

Another unnamed US official has said that a Daesh gathering targeted in the strike may have included other English-speaking ISIL militants who are collectively known as “the Beatles” among the terror group’s captives for their British accent, the Washington Post reported.

Emwazi has appeared in seven videos released by Daesh since August 2014, when he beheaded US journalist James Foley. In September 2014, he appeared in another video showing the beheading of a second US journalist named Steve Sotloff as well as British aid worker David Haines.

The so-called 'Jihadi John' appeared in a video released in October, where he purportedly killed British aid worker Alan Henning and a Syrian soldier. In a November 2014 video, he killed US aid worker Abdul-Rahman Kassig, also known as Peter Kassig.

Back in January, Emwazi also featured in footage in which he appeared to be decapitating Japanese hostage Kenji Goto.

S/SH