Israel said Monday that it will take part in a U.N.-led investigation into a deadly flotilla raid in May.

Prime Minister Benjamin Netanyahu said he decided to cooperate with the investigation, despite earlier stating Israel would not participate.

"Israel has nothing to hide. The opposite is true. It is in Israel's national interest to ensure that the factual truth about the entire flotilla incident will be brought to light and the entire world, and that is precisely the principle we are promoting," Netanyahu said in a statement.

Israel conducted it's own investigation in July, concluding the military acted on flawed intelligence gathering and planning, but said Israel soldiers did nothing wrong.

But the U.N. criticized the probe saying it did not have international credibility.

The international investigation will focus on the details surrounding the May 31 incident. Nine pro-Palestinian activists were killed during the raid on a Gaza bound ship.