State Department and Defense Department officials told the Times that they had opened an investigation into how the weapons ended up in Libya.

Menendez is asking Pompeo to provide details on how arms sold to the UAE are monitored after the sale, what steps the administration has taken to make sure the UAE "doesn’t unlawfully divert additional weapons" and why the administration still supports selling weapons to the UAE.

Menendez added that he would be following up with the State Department inspector general to investigate the arms sale, the broader decision to keep selling arms to the UAE, and "what you and your Department knew about UAE’s illicit transfers when considering and approving such sales."