Iran, of course, had nothing to do with any of them. Blaming Tehran didn't pass the smell test. Last October, Iranians were falsely accused of trying to kill Saudi Arabia's ambassador in Washington. The charge resembled a bad film plot. It was baseless, and officials pointing fingers the wrong way knew it.
Last February, Israel again levied false charges. India and Georgia incidents were cited. Allegedly Israeli embassy workers in both countries were targeted. One injury was reported. No one was killed.
A Bangkok, Thailand incident happened around the same time. Iranians were detained after an explosion damaged their rented house. Despite no credible evidence, they were suspected of targeting Israeli diplomats.
Iran threatens no one. It painstakingly avoids provocations. It has everything to lose and nothing to gain from them. Israel benefits greatly. The above incidents and many others bore classic Mossad fingerprints. So does Bulgaria.
Israel and Washington wage covert and low-level hot war on Iran.
Tactics include computer viruses, other cyber attacks, bombings, sabotage, multiple rounds of sanctions, attempts to cripple its central bank and oil exports, targeted assassinations, satellite, drone, and other type spying, bogus accusations, a partial isolating blockade, and saber rattling stopping short of bombs away.
Both countries menace humanity. Iran threatens no one. Its neighbors know it. It hasn't attacked another country in over 200 years. No evidence suggests it's developing nuclear weapons.
Washington and Israel specialize in false flags, war, other belligerence, targeted killings, and state terror as official policy.