As far as I can tell, only the Sofia News Agency (novinite.com) makes this point:
The seeming terrorist attack against Israeli tourists in Bulgaria's Burgas Wednesday night has occurred on the day of another anti-Jewish attack, the AMIA bombing in Buenos Aires on July 18, 1994, which killed 85 people.
The blast at Bulgaria's Burgas Airport Wednesday night, July 18, 2012, in which a number of Israeli tourists are reported to have been killed or wounded, is a terrorist attack, according to the Bulgarian police.
Between 3 and 5 [ now 7 ]Israeli tourists are reported dead and some 18-20 are reported wounded in the explosion which hit their bus at the Sarafovo Airport near Bulgaria's Black Sea city of Burgas at about 5:30 pm EET.
RT: Airport shuttle bus with Israeli tourists explodes in Bulgaria (Image from e-burgas.com)
The Bulgarian authorities have confirmed there are casualties have not confirmed their number.
The site of the Burgas Airport says the Israeli tourists arrived on a flight of Air Via from Tel Aviv at 4:50 pm. After that, they got on a bus to reach Bulgaria's largest Black Sea resort Sunny Beach.
According to reports, there were about 40 Israeli tourists on the bus. A total of three buses caught fire on the Burgas Airport parking lot, a local news site, Burgas 24 says.
The AMIA bombing was an attack on the Asociación Mutual Israelita Argentina (AMIA; Argentine Israelite Mutual Association) building. It occurred in Buenos Aires on July 18, 1994, it killed 85 people and injured hundreds. It was Argentina's deadliest bombing ever....