WASHINGTON (AP) — A two-year investigation by the Republican-controlled House Intelligence Committee has found that the CIA and the military acted properly in responding to the 2012 attack on a U.S. diplomatic compound in Benghazi, Libya, and asserted no wrongdoing by Obama administration appointees.

Debunking a series of persistent allegations hinting at dark conspiracies, the investigation of the politically charged incident determined that there was no intelligence failure, no delay in sending a CIA rescue team, no missed opportunity for a military rescue, and no evidence the CIA was covertly shipping arms from Libya to Syria.

In the immediate aftermath of the attack, intelligence about who carried it out and why was contradictory, the report found. That led Susan Rice, then U.S. ambassador to the United Nations, to inaccurately assert that the attack had evolved from a protest, when in fact there had been no protest. But it was intelligence analysts, not political appointees, who made the wrong call, the committee found. The report did not conclude that Rice or any other government official acted in bad faith or intentionally misled the American people.

A leading Republican wants to expand the House investigation into the 2012 Benghazi terrorist attack by adding a Senate probe, as a new House Intelligence Committee report Friday concluded that the initial CIA assessment found no demonstrations prior to the assault and a primary purpose of the CIA operation in eastern Libya was to track the movement of weapons to Syria.

The report described the attack as "complex" with the attackers affiliated with Al Qaeda. It also said the initial CIA assessment concluded there were no demonstrations outside the State Department Consulate in Eastern Libya.

Referring to the House Select committee Chairman, and the Democratic ranking member, Sen. Lindsey Graham, R-SC, said the current House investigation should be expanded.