The U.S. released surveillance images on Sunday that it said proved Russia supplied weapons to Ukrainian rebels and fired at Ukrainian army units.

The photos, taken from Wednesday to Saturday, showed various "ground scarring" at rocket-launch sites on Russia's side of the border, the White House said.

Like Us on Facebook

An area near the camp of Ukrainian army units showed areas that indicated impacts from multiple rocket launchers, The Hindu Business Line relayed.

After the U.S. State Department released the images, Secretary of State John Kerry urged Russian Foreign Minister Sergei Lavrov over the phone to stop transporting heavy weapons and artillery into Ukraine. He also rejected Lavrov's claim that the weapons are one of the sources of the conflict between Russia and Ukraine.

In spite of their different approaches in dealing with the conflict, Kerry and Lavrov agreed that it is important to push for a ceasefire and a dialogue between Russia and Ukraine. Kerry also conveyed U.S. support for transparency in the internal probe into the downed Malaysia Airlines Flight MH17.

The Malaysian passenger jet went down on July 17 after it was hit by a ground-to-air missile. The U.S., Ukraine and other European countries accused Moscow-backed separatists of launching the missile that killed all 298 people on board the plane and alleged that the rebels used Russian-made missiles in the shoot down.

On Sunday, Dutch and Australian police attempted to visit the crash site in Ukraine, but security issues prevented them from entering the site. The Organization for Security and Cooperation in Europe, which led the site visit, said the conflict between Ukraine and pro-Moscow separatists forced them to cancel the trip and stay at Donetsk.

Malaysian Prime Minister Najib Razak also announced that they were able to strike a deal with the rebels to allow international police to access the scene of the plane crash. The pro-Russia separatists currently control access to the place but the Netherlands, Australia, and other countries are pushing for free access to the site.

A team of 68 Malaysian police personnel is set to fly from Kuala Lumpur to join the Dutch and Australian groups on Wednesday, according to Najib. The unarmed police forces will be responsible for securing the crash site when the investigation begins.

TagsU.S. Photos, Surveillance photos, Ukraine Rebels