Cricket fans seeking seats for the World Cup semi-finals and final have encountered frustration after "unprecedented" demand caused the official supplier to take tickets off sale.

Seats were due to go on general sale on Monday but the interest meant ticket agency Kyazoonga's website was inaccessible for many visitors.

The website was operational on Tuesday, however only tickets up to the quarter-final stage were available to purchase.

Kyazoonga apologised with updates on their Facebook page, initially reporting: "We are facing absolutely unprecedented amounts of traffic from all over the world, with hundreds of millions of people hitting at once. Some of you may have trouble accessing the site. It seems that cricket fever has surpassed all anticipations and expectations. Please bear with us as our global network team works on bringing you the tickets you all have been waiting for."

Later, they clarified that no tickets had been sold.

"The team's still working on it guys," the ticket agency announced.

"Please bear with us. We understand your frustration and feel your pain. We are working non-stop to get you the tickets you need.

"Rest assured, not a single ticket that was meant for sale has been sold yet. We can't wait to get them to you as soon as the site is back up."