(CNN) Glenn Selig, spokesman for Trump campaign adviser Rick Gates, was killed in the weekend Kabul hotel attack, according to a statement from spokesperson for The Publicity Agency and Selig Multimedia Inc., his Florida-based companies.

Four Americans were killed in the attack on the Intercontinental Hotel in Kabul, according to the US State Department.

"The United States strongly condemns the attack on January 20 at the Intercontinental Hotel in Kabul. We can confirm that there were four US citizens killed and two injured. We offer our deepest condolences to the families and friends of those who were killed and wish for the speedy recovery of those wounded. Out of respect for the families of the deceased, we have no further comment," State Department spokesperson Heather Nauert said in a statement.

Selig represented Gates in recent months, as Gates faces criminal charges in special counsel Robert Mueller's Russia investigation. Selig also played a role in promoting a legal defense fund for Gates in December.

"Unfortunately, we have received confirmation Glenn Selig was killed during the attack on the Intercontinental Hotel," the Selig Multimedia representative said in the statement. "Glenn was a tireless professional, loyal friend and pillar of the community, but most importantly he was a loving husband and wonderful father.

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