The suspected suicide bomber who killed himself and six others at Burgas airport waited an hour for his victims to arrive, Bulgarian authorities said last night.

Video surveillance footage showed the casually dressed bomber circling around a group of buses about to take Israeli tourists to a nearby resort before the attack.

DNA is now being examined after the U.S. driving licence the bomber was carrying turned out to be fake.

The bomber was said to be 36 years old and had been in the country for between four and seven days before the attack.

Special forces had managed to obtain DNA samples from the fingers of the bomber and were now checking databases in an attempt to identify him, Tsvetanov said.

Media reports in Bulgaria earlier in the day claimed the man behind the horrific attack at Burgas airport is Mehdi Ghezali, 33, an Algerian-Swedish Islamist.

He is believed to have spent two years in Guantanamo Bay after he was arrested in Pakistan in 2001. But when he was released and sent back to Sweden the local government refused to press charges.

The tourists had arrived in Bulgaria on a charter flight from Israel and were on the bus in the airport car park when the blast tore through the vehicle. Body parts were strewn across the ground, mangled metal hung from the double-decker bus's ripped roof and black smoke billowed over the airport.

Mr Netanyahu said Iran, the Jewish state's arch-enemy, was behind the attack and that 'Israel will react powerfully against Iranian terror.'

Medical officials said two badly injured Israeli tourists were taken to hospitals in Bulgaria's capital Sofia. One woman was in intensive care with head and chest injuries and a man was in a critical state with burns covering 55 percent of his body.

Israeli officials had previously said that Bulgaria, a popular holiday destination for Israeli tourists, was vulnerable to attack by Islamist militants who could infiltrate via Turkey.

Israeli diplomats have been targeted in several countries in recent months by bombers who Israel said struck on behalf of Iran.

Although Tehran has denied involvement, some analysts believe it is trying to avenge the assassinations of several scientists from its nuclear programme that the Iranians have blamed on Israel and its Western allies.

'The attack is terrible and inexcusable,' said German Foreign Minister Guido Westerwelle. 'It is a time to act responsibly. We have no information of our own. We urge caution in starting to assign blame.'(source: daily mail uk)

The link for the video: http://www.dailymail.co.uk/news/article-2175859/Pictured-CCTV-suspected-suicide-bomber-killed-people-Bulgaria-bus-bombing-fake-US-driving-licence.html