Barry Sweeney (2nd L), father of Liam Sweeney, a passenger on Malaysian Airlines flight MH17, arrives with other relatives at Downing Street in London. REUTERS/Luke MacGregor

London - The father of a British MH17 victim said fighting in the Ukrainian plane crash zone should end to facilitate the repatriation of victims, after he met Prime Minister David Cameron on Tuesday.

Barry Sweeney, whose son Liam was among the 298 people killed, spoke of his anger and frustration at not knowing what had happened to the 28-year-old's body.

He and his wife Angela were among seven of the 10 families of British victims of the crash to attend an hour-long meeting with Cameron at his Downing Street office on Tuesday.

“I feel very angry and frustrated. It would be nice if they could just stop fighting for a little bit so that we could get all our boys and girls home,” Sweeney said.

Fighting in the strife-torn eastern Ukraine on Monday has prevented international experts from reaching the crash site of Malaysia Airlines flight MH17, which came down on July 17.

Western governments say the evidence points to the plane having been shot down by pro-Russian separatists.

“Mr Cameron was very humble. He answered every question that was asked of him. He brought a few experts in to talk about crash sites and how the airplane might have come down,” Sweeney said.

“We basically asked Mr Cameron just to help. The talking, I suppose, has got to stop and the doing has got to be done.”

Sweeney said the family did not know whether their son's body remained at the crash site in eastern Ukraine or was among those flown to The Netherlands, where the flight originated.

“It's very difficult but unfortunately we are going to have to wait to find out,” he added.

Liam Sweeney was travelling with fellow Newcastle United fan John Alder to see the English Premier League football club's pre-season tour in New Zealand when the plane came down.

A Downing Street spokeswoman said Cameron has expressed his condolences to the victims' families.

“He made clear that the government was determined to do all it can to support them over the coming difficult months, from ensuring that their loved ones are brought home as soon as possible to bringing justice to those responsible for shooting down the passenger jet,” she said.

“The discussion focused on the repatriation process, the investigation and how to prevent such a tragedy from ever happening again.”