Iran’s mission to the United Nations said Tehran was not involved in Hamas’ attacks on Israel in a statement to CNN.

“We emphatically stand in unflinching support of Palestine; however, we are not involved in Palestine’s response, as it is taken solely by Palestine itself,” the statement said.

Some background: Iran has repeatedly been accused of attempting to arm Hamas and other groups in its effort to attack by proxy.

US officials told CNN on Sunday that the Biden administration has yet to find a smoking gun so far linking Iran directly to planning and executing this weekend’s assault.

However, there’s no denying Iran’s history of aiding Hamas, the officials say. They are beginning to go as far as to say that Iran’s well-established connections to Hamas would mean it is likely Tehran’s help in training and financing ultimately played a role.