article_snippet.sent: An embarrassed David Cameron this morning admitted An embarrassed Mr Cameron couldn't explain what happened - but said it must have been because An embarrassed Mr Cameron had been past West Ham's famous Upton Park ground in London on Friday.
article_snippet.sent: it later emerged that the Prime Minister actually flew over the ground in a private helicopter charted to get the Prime Minister back to London quickly after a day's campaigning.
article_snippet.sent: the Prime Minister tried to explain away the Prime Minister gaffe by saying the Prime Minister had driven by the West Ham stadium the day before .
article_snippet.sent: Appearing on ITV's Lorraine, the PM said: 'I had been past West Ham the day before -
article_snippet.sent: A senior Conservative source told MailOnline the PM had not returned to London on Friday on the party's battle bus - but had flown back from Clacton-on-Sea.
article_snippet.sent: On An embarrassed Mr Cameron flight back from Essex - paid for out of Conservative Party funds - An embarrassed Mr Cameron is likely to have passed over the old West Ham ground.
article_snippet.sent: An aerial view of Upton Park home of West Ham United Football Club in East London - which An embarrassed Mr Cameron flew over by helicopter on the way back from Clacton, Essex, on Friday afternoon .
highlights_snippet.sent: The PM today said it was because David Cameron had been past West Ham's ground .
  
highlights_snippet.sent: Tories later confirm The PM returned to London on Friday in a helicopter .