British Prime Minister David Cameron has joked that he may drop his support for goalmouth technology after England benefited from referee error in a Euro 2012 group stage match against Ukraine.

England beat Ukraine 1-0 in yesterday's match, qualifying for the quarter-final knockout stage in the process, but only after Ukraine's 62nd-minute equaliser was wrongly adjuged not to have crossed the line. 

Asked about the game at a news conference at the G20 summit in Mexico, Cameron was happy to offer his warm congratulations, but a little more coy when asked if the mistake should lead to the introduction of sensors to confirm goals.

He referred back to a previous international match in which England was the team on the wrong end of a bad refereeing decision.

"Goal-line technology?" he pondered.

"I remember thinking it was a thoroughly good idea when Frank Lampard was disappointed in that previous England-Germany game. I'll have to reflect a little bit further but don't expect an immediate U-turn," he joked.

England will now play Italy in the next round of the tournament on Sunday.