TEL AVIV, Israel (Ma'an) -- Bulgaria's foreign ministry on Saturday dismissed a statement by a militant Islamic group which claimed responsibility for an attack last week that killed six Israelis, Israeli news site Ynet reported.

Qaedat al-Jihad released a statement in Western media outlets claiming responsibility for the attack.

"One of our groups aided by Allah managed to bomb a bus full of Jewish tourists, plunderers of holy lands, after careful tracking," it said.

"The holy war is not confined to a particular arena and we shall fight the Jews and the Americans until they leave the land of Islam," it added.

Israel has openly blamed Hezbollah and Iran for the attack, although it is still unclear who the perpetrators are.

Iran on Thursday dismissed "unfounded statements" by Israel linking Tehran to the Burgas blast, saying they were politically motivated accusations which underscored the weakness of the accusers.

A suicide bomber on Wednesday killed eight people on a bus carrying tourists in Bulgaria's Burgas airport.