KIEV/THE HAGUE, July 25  -- The second batch of remains recovered from the crash site of Malaysia Airline Flight MH17 in eastern Ukraine arrived in the Netherlands on Thursday aboard two military aircraft.

Yet in a development that cast a gloom over the strenuous probe into the July 17 tragedy, Ukrainian Prime Minister Arseny Yatsenyuk announced his resignation on the same day.

The 74 coffins, which will be transported from Eindhoven airport to the central city of Hilversum for identification, brought to 114 the total number of bodies brought back to the Netherlands.

More remains are scheduled to arrive on Friday and Saturday. The fatal crash of the Boeing 777 airliner killed all the 298 people aboard, of whom 193 were Dutch.

At the crash site in eastern Ukraine, international experts found more remains and another large piece of the fuselage on Thursday, Michael Bociurkiw, a spokesman for the Organization for Security and Cooperation in Europe (OSCE), told reporters in Donetsk.

Meanwhile, an Australian federal police officer on Thursday inspected security at the crash site. Australian Foreign Minister Julie Bishop discussed with her Dutch and Ukrainian counterparts on sending around 50 Australian federal police officers to Ukraine to ensure security of the site.

As the recovery of the bodies continues, the Dutch Safety Board (DSB), which leads the air crash investigation, said on Thursday that investigators in England have successfully downloaded data from the ill-fated plane's flight recorders and found no evidence of manipulation of the two boxes.

It did not release any details of the data.

Adding to the complexity of the situation in Ukraine, Yatsenyuk on Thursday announced his resignation as prime minister. The 40-year-old former banker and diplomat said the move was due to "the collapse of the coalition and blocking of the government initiatives."

Earlier in the day, two political parties announced their departure from the parliamentary coalition. As a result, the parliament failed to approve the bills on the state budget amendments, on the country's future energy policy and on increasing funding for the army.

The resignation of the prime minister is now pending parliament approval. If the lawmakers vote to accept it during the next parliamentary meeting, it would also trigger a dissolution of the government.

The ruling coalition, "the European Choice," was formed in the parliament in late February after the ouster of President Viktor Yanukovych and the former government.

The break-up of the coalition gives Ukrainian President Petro Poroshenko the legal instruments to dissolve the 450-seat assembly and call early parliamentary elections.