Citing investigators probing last Wednesday's bombing of a bus at Burgas airport that killed five Israeli tourists and the driver, television channel bTV said that the attacker was in the city of Varna for at least a day before the bombing.
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While in Varna, which is further up the Black Sea coast from Burgas, he left behind "biological evidence" at a hotel, BTV said.
The five Israelis killed in the Burgas terror attack (Photo: Ohad Zwigenberg)
The newspaper Troud meanwhile reported that police were looking for a woman believed to have been staying in the Varna hotel with the bomber, naming it as the three-star Hotel Perfekt.
This woman is also believed to be linked to a possible second man whom police think may have been the bomber's accomplice, the newspaper said, also citing unnamed investigators.
The daily also cited a taxi driver who said he drove the suicide bomber from Ravda and Pomorie, two small towns north of Burgas, the day before the attack, and that he spoke "decent Russian."
Bulgarian authorities have declined to comment on the investigation, saying only that they believe the bomber was aged around 36, had a fake US driver's licence, was not Bulgarian and had been in the country "not less than four days."
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