Chilling CCTV shows Barcelona terror suspects laughing and joking at a petrol station hours before the deadly Las Ramblas massacre

These are the shocking images that show the Spanish terrorists behind last week's deadly attacks - shot by police hours later as they went to massacre innocent civilians - laughing and joking at a shop counter before they were taken down in a hail of bullets.

One of the men - gunned down just four hours afterwards by a hero cop as they attacked pedestrians with an axe and knives in the seaside resort of Cambrils - can be seen turning to another as they giggle about the type of lighter they want to buy, the Daily Mail reports.

The three men were identified by Catalan newspaper Ara - which published the CCTV images from a motorway service station shop - as Omar Hychami, Las Ramblas killer Younes
Abouyaaqoub's brother Houssaine and Moussa Oukabir who was initially wrongly identified as the one who mowed down and killed 13 people on the famous Barcelona walkway.

Nothing in the chilling footage marks them out as the sadist extremists preparing a violent last stand after they were forced to switch plans to bomb some of Barcelona's most famous monuments including the Sagrada Familia following an accidental explosion at a property where they were preparing their explosives.

One was even wearing a Real Madrid shirt.

Ara reported the five men shot dead in Cambrils were filmed at the motorway service station on four separate occasions in the run-up to the thwarted massacre.

Police are said to be focusing on the theory they had picked the venue to reorganise and reassess their plans after the explosion at the mens' bomb-making house which killed the Imam accused of brainwashing them into becoming terrorists.

It emerged on Tuesday radical preacher Abdelbaky Es Satty, 42, overturned an order to leave Spain after being told he was being kicked out of the country when he left prison in 2014 following a drugs conviction.

Ara reported the first CCTV footage of the men was recorded at 4pm last Thursday, around an hour before Younes Abouyaaqoub drove his rented Renault Kangoo van at victims on Las Ramblas and then stabbed Spaniard Pau Perez to death before going on the run and sparking a four-day manhunt which ended with his killing by police on Monday.

Younes' brother Houssaine was seen buying a top-up for his mobile phone at the same shop counter between 6pm and 7pm.

The third visit, made public in the footage published yesterday afternoon by Ara, was timed at 8.55pm last Thursday, around four hours before the Cambrils outrage was ended by the actions of a brave Spanish cop who shot dead all but one of the five terrorists in a drama in which an innocent woman died of her injuries.

The paper said the men had been buying lighters.

The killers went on to buy knives from a nearby shop in Cambrils before a last visit to the motorway service station around 10pm last Thursday in which another of the Cambrils terrorists was filmed buying bread and energy drinks. 

Meanwhile, more information about the terror cell emerged yesterday, as the four surviving alleged members appeared in court for the first time.  

Mohammed Houli Chemlal, 21,  Driss Oukabir, 28, Salah El Karib, 34, and Mohamed Aallaa, 27, were all detained last week over their alleged role in the attacks on Barcelona and Cambrils. 

Yesterday,  Houli Chemlal told a judge that the group were planning an attack involving explosives on monuments around the city, including the Sagrada Familia church.

But the attack had to be scaled back after an explosion at a suspected bomb factory on Wednesday wounded Chemlal and killed Es Satty, the court heard. 

Later on Wednesday, police revealed that overnight raids had resulted in the discovery of a suicide vests with live explosives at the bomb factory.

Josep Lluis Trapero, head of police in Catalonia, said 120 gas canisters and traces of TATP components - a homemade explosive that is a hallmark of the Islamic State group that claimed the attacks - had been found at the house. 

After a full day court hearing, Chemlal and Oukabir were remanded in custody and charged with terror-related offences.

Mohamed Aallaa who owns the car used in the Cambrils attack, was granted conditional release, with the judge saying evidence against him was weak.