Shocking footage from Majorca’s Palma airport has revealed Britons fainting in the unbearable heat after "increased border controls" created waits of over three hours.
Video from the airport, busy with people travelling over the Easter weekend, captures more than 1,000 people waiting in line.
This comes after Spanish border police suddenly implemented strict border control regime in the main airport of the British tourist hotspot.
People quickly took to social media to accuse Spain of manufacturing the delays in response to the Gibraltar dispute.
Shocking footage from Majorca’s Palma airport has revealed Britons fainting in the unbearable heat
Paramedics on standby at the airport
However, a Foreign Office spokeswoman rejected these rumours as "unsubstantiated".
She said the chaotic scenes at Palma were due to the busy Easter weekend.
British tourists voiced their frustration on Twitter after people fainted in the torturous wait.
Olli Astley wrote on Twitter: "People passing out and huge problems at Palma Airport, staff have no clue what’s happening".
Ann-Marie Mallon tweeted: "What is happening at Palma airport? Medics even on stand by as people were fainting".
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People waited for over three hours to get through passport control
People accused Spain of manufacturing the delays
People passing out and huge problems at Palma Airport
Others claimed that there was no representative at the airport to clear up the confusion, as some said the passport checks were "bizarre".
Airline Jet2 has told its passengers this is due to increased security checks.
Airport paramedics were put on standby to give medical assistance after several tourists fainted in the queue.
Relations between the UK and Spain soured after recent disagreements over Gibraltar, the overseas territory in the south of Spain.
The row between the two countries has deepened after Spain told Britain to "calm down" over escalating Gibraltar tensions.
The rich and famous in Gibraltar Sun, April 9, 2017
Fascinating pictures have revealed the People of Gibraltar’s unwavering Britishness in both war and peace throughout their toughest years
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Prince Charles and Diana, Princess of Wales waving at the crowds at Gibraltar, as she is driven on her way to the Royal Yacht Britannia, at the start of her honeymoon on 1st August 1981
After Theresa May triggered Article 50, Spain was given a veto by the EU over any Brexit deal involving the Rock.
This week a Spanish warship was bullied out of Gibraltarian waters for a second time by a Royal Navy patrol boat.
In 2002, the people of Gibraltar voted overwhelmingly to reject a proposal for joint British-Spanish sovereignty.