The Oasis comeback tour shows have started to sell out for some dates after fans have been scrambling to secure tickets.

Ticketmaster's Irish site said tickets to see the band at Dublin's Croke Park on two dates in August next year have sold out.

Thousands of people are still trying to access three websites - Ticketmaster, See Tickets and Gigsandtours - for tickets for the UK dates.

But a message on the Ticketmaster website warned that the "inventory is now limited", with some ticket types no longer available.

Within minutes of the sale starting on Saturday morning, some people looking for tickets for gigs at London's Wembley Stadium in July and August found more than one million people ahead of them in the booking queue.

Others were put into what they described as a "queue for the queue" with all three ticket sellers redirecting people to a page saying their websites were experiencing high demand.

Tickets were on sale from 09:00 BST and an hour earlier for Ireland, where some also reported issues accessing the Ticketmaster website.

Some people trying to buy tickets have reported being kicked out of the queue after being accused of being a "bots", which are automated computer programs set up to buy tickets for popular events.

They were told they were bots after waiting in the queue for more than two hours.

Ticketmaster's website called for patience from fans, posting a message which read: "As expected Oasis is incredibly popular. We're processing orders as quickly as possible so please keep your place in line."

In a separate statement, the company said the queue was "moving along", reporting millions of people were accessing their website.

"Fans are advised to hold their place in line, make sure they're only using one tab, clear cookies, and ensure they aren't using any VPN software on their device", Ticketmaster added.

A later message said: "Tickets for Oasis are still available, but inventory is now limited and not all ticket prices are available."

On Tuesday, Noel and Liam Gallagher announced that they had put their acrimonious split behind them, confirming the band's long-awaited reunion.

The move came 15 years after the group disbanded following a backstage brawl between the brothers at the Rock en Seine festival in Paris.

On Friday, shortly after a three-hour pre-sale for a limited number of fans began, tickets for the UK gigs were being listed on resale websites like StubHub and Viagogo for more than £6,000 - around 40 times the face value of a standing ticket.

They included:

• £6,000 for Oasis's show at Wembley Stadium in London on 26 July
• Between £916 and £4,519 for the first concert of the tour at Cardiff's Principality Stadium on 4 July
• Over £4,000 for standing tickets at Edinburgh's Murrayfield Stadium on 12 August
• More than £2,500 for the band's homecoming concert at Manchester's Heaton Park on 12 July

Standing tickets for the shows cost about £150, while standard seated tickets range from £73 to about £205. Prices for official premium packages go up to £506.

About 1.4 million tickets are expected to be available for the 17 outdoor concerts.

Oasis urged people not to resell tickets at higher prices on websites not linked to their promoter, and said those tickets would be "cancelled".

It added that they could only be resold at face value on the websites Ticketmaster and Twickets.

"Tickets sold in breach of the terms and conditions will be cancelled by the promoters," the band said.

Meanwhile, Viagogo issued a statement in which it said "resale is legal in the UK".

Cris Miller, Viagogo global managing director, said "fans are always protected by our guarantee that they will receive their tickets".

He added: "Demand will be at its peak when tickets hit the on-sale but it's not a normal reflection of what tickets can and will go for."

There was joy for some fans who managed to get tickets.

Nayat Karakose, 41, from Istanbul got two tickets to see the band in Wembley in the pre-sale on Friday.

She told the BBC that when she found out she got the tickets, she said she felt "supersonic".

“My heart was beating, I was super, super excited, I couldn’t believe it for the moment. I thought I’d have to pay a couple of thousands pounds," she said.

Ms Karakose has been a fan since she was 13 and this will be her third time seeing the band live.

Six years ago she met Liam Gallagher in Istanbul and got a photograph with him as he was about to leave a hotel, but added "it would be a dream to meet Noel Gallagher".

Rachael Board, 51, from Devon, got two tickets to see Oasis at Wembley - but paid more than £900 after failing to get cheaper tickets.

She told the BBC: “We got caught up in the vibe actually, if I’m being honest. I am a longstanding fan and loved all their stuff back in the 90s but would never think I was that person who would spend so much on a concert ticket, but we have."

Oasis were formed in Manchester in 1991 - their original line-up comprised of Liam and Noel Gallagher, guitarist Paul "Bonehead" Arthurs, bassist Paul "Guigsy" McGuigan and drummer Tony McCarroll.

As anticipation for the gigs builds, sales and streams of the band's back catalogue have surged, with three albums going back into the top five of the UK charts on Friday.

Greatest hits collection Time Flies is at number three, 1995's What's The Story Morning Glory is at four, and debut Definitely Maybe - released on 29 August 1994 - is in fifth place.

A 30th anniversary edition of Definitely Maybe was released on Friday.