A Malaysian Airlines plane with 295 on board crashed in Ukraine near the Russian border. While no party has claimed responsibility for the event, new evidence pointed to a pro-Russian group for mistakenly talking down the commercial plane.

The Kyiv Post reported that the Ukraine's national security department SBU intercepted several phones calls between Russian military intelligence officers and members of the Russian-backed Cossack militants.

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In one phone call, a member of the separatist group reported to a person identified by Ukraine's SBU as a colonel regarding the shot down plane, which is about to be examined by the militants.

In another call, two speakers on the phone exchanged information about the pilot, the location of the crash and casualties on the plane.

The security service of Ukriane has release the transcript of the phone calls on their website.

The pro-Russian separatist leader Oleg Tsatev denied the accusations before the release of the phone calls. In an interview with TIME, he said, "we don't have weapons that can take down a plane from that altitude."

The Maslaysian flight was the third aircraft taken down over the battle-torn east Ukraine region of Donetsk, a place both the government army and rebels try to make advancement.

Ukrainian President Petro Poroshenko said in a statement earlier today, "This is the third tragic incident in recent days after the AN-26 and SU-25 were shot down.   We can't rule out that this plane was also shot down, but we underscore that the Ukrainian armed forces were not carrying out any actions to strike airborne targets."

According to the Wall Street Journal, separatist leaders had reportedly seized a Ukrainian air-defense base equipped with Buk missiles near the crash site.

Separatist leader Andrei Purgin told The Associated Press that he was certain that Ukrainian troops had shot the plane down, but leaving no explanation for his comments.