International investigators said Wednesday they were halting their probe into the downing of Malaysia Airlines flight MH17 over Ukraine in 2014, saying there was not enough evidence to prosecute more suspects.

In this file photo taken on Aug 1, 2014, Australian and Dutch investigators examine a piece of the Malaysia Airlines Flight 17 plane, near the village of Hrabove, Donetsk region of eastern Ukraine. (File photo: AP)

"The investigation has now reached its limit, all leads have now been exhausted, the investigation is therefore being suspended. The evidence is insufficient for more prosecutions," Dutch prosecutor Digna van Boetzelaer told a news conference in The Hague.