The resolution also condemns, "in the strongest possible terms, the despicable attacks on American diplomats and public servants in Benghazi and calls for the perpetrators of such attacks to be brought to justice."

U.S. Ambassador to Libya Christopher Stevens and three others were killed in the attack, which initially appeared to come at the hands of a mob angered over an anti-Islamic film, but which observers increasingly believe might have been coordinated by militants or terrorists. 

The Senate resolution notes that Stevens spent 21 years in the Foreign Service and recognizes the "dedicated service and deep commitment" of all four officials.

In a prepared statement on Wednesday, Senate Foreign Relations Committee Chairman John KerryJohn Forbes KerryShould President Trump, like President Obama, forsake human rights in pursuit of the deal with a tyrant? GOP Senate report says Obama officials gave Iran access to US financial system Democrats conflicted over how hard to hit Trump on Iran MORE (D-Mass.) praised Stevens for daring to operate in Libya during the rebellion that led to the end of dictatorial rule by Col. Moammar Gadhafi.

"He was an important part of the work we are doing in Libya, and we will not let this deplorable violence turn back the progress he helped make possible," Kerry said. "Let's remember that Libyans fought to protect the consulate and rescue the Americans inside, and that Libyans took Chris to a hospital in a desperate and potentially dangerous attempt to save his life."