It is now official; American Aid Worker Kayla Mueller who has been held hostage by ISIS has been killed. The acknowledgement was made a couple of days after ISIS said that US Hostage Kayla Mueller has been killed in a Jordanian Air Strike.

President Obama said in a statement released by the White House, “It is with profound sadness that we have learned of the death of Kayla Jean Mueller. On behalf of the American people, Michelle and I convey our deepest condolences to Kayla’s family – her parents, Marsha and Carl, and her brother Eric and his family – and all of those who loved Kayla dearly. At this time of unimaginable suffering, the country shares in their grief.”

ISIS had claimed in a statement on Friday that Mueller had been killed in a Jordanian Air Strike. However it did not present with any evidence leading to doubts about its claims.

A spokesperson for the White House National Security Council, Bernadette Meehan said that during the course of the week the Mueller family “received a private message from Kayla’s ISIS captors containing additional information. Once this information was authenticated by the intelligence community, they concluded that Kayla was deceased”

It is still not clear when or how Mueller was killed. Mueller was kidnapped in August 2013 in Syria.

Mueller’s parents, Carl and Marsha, released a statement shortly after the White House confirmation of Mueller’s death, “We are heartbroken to share that we’ve received confirmation that Kayla Jean Mueller, has lost her life. Kayla was a compassionate and devoted humanitarian. She dedicated the whole of her young life to helping those in need from freedom, justice and peace… Our hearts are breaking for our only daughter, but we will continue in peace, dignity and love for her.”

Mueller, from Prescott, Ariz., was kidnapped on Aug. 4, 2013 after leaving Spanish ‘Doctors without Borders’ hospital in Aleppo, Syria, according to information provided by a family spokesperson.