THE HAGUE, Netherlands — It is no longer only grief and mourning sweeping across the Netherlands in the aftermath of the downing of Malaysia Airlines Flight 17. It is now anger.

The Dutch have widely condemned the way the bodies of loved ones have been treated in Ukraine and the fact they have not yet been returned home, four days after Thursday’s tragedy.

“No words can describe it,” said Silene Fredriksz-Hoogzand, whose son Bryce and his girlfriend Daisy Oehlers died on their way to a vacation in Bali. “Bodies are just lying there for three days in the hot sun. There are people who have this on their conscience. There are families who can never hold the body of a child or a mother.”

Prosecutors in the Netherlands said they have begun a criminal investigation, though it remains unclear exactly where any suspects might be brought to justice.

Fredriksz-Hoogzand was among scores of victims’ relatives expected at a behind-closed-doors meeting Monday near the central city of Utrecht, where they were to be consoled by King Willem-Alexander, Queen Maxima and Dutch Prime Minister Mark Rutte.

The downing of the Boeing 777 over eastern Ukraine on Thursday killed 298 passengers and crew, including 193 Dutch citizens.

A group of lawmakers hurried back from their summer recess for a meeting Monday with Rutte, who told them that getting the bodies home as soon as possible was his government’s top priority. He said a Dutch military transport plane is ready to repatriate the remains, which are now being stored in a refrigerated train in a rebel-held town.

“If the train finally gets going and the bodies get to Ukraine-controlled territory then we would prefer — and a Hercules is ready at Kharkiv airport — to get the bodies back to the Netherlands as soon as possible,” Rutte said.

One lawmaker, Gert-Jan Segers of the Christian Union, voiced the growing nationwide frustration.

“The Netherlands is grieving,” he said. “And angry.”

Right-wing lawmaker Louis Bontes urged the government to send special Dutch forces to secure the crash site.

“This messing around with our people can go on no longer,” he said. “Our people must be brought home now.”

Rutte said he has made it “crystal clear” to Russian President Vladimir Putin that he must use his influence with rebels to ensure unhindered access to the crash scene for international investigators. He says sanctions could be slapped on “those directly or indirectly responsible” for hindering the probe.