Argentina's government boosted security at its airports, borders and the U.S. Embassy in Buenos Aires as tensions simmer between the United States and Iran, the South American country's defense minister told local media on Monday.

Argentina, which suffered two attacks, in 1992 and 1994, decided to raise its alert level days after a U.S. drone strike killed Iranian military commander Qassem Soleimani in Iraq, stoking global fears of retaliation attacks.

"Because of the history of two attacks we had, Argentina must be on alert for this type of conflict worldwide," Defense Minister Agustin Rossi told local news site Infobae.

More than 100 people were killed in two attacks in Argentina in the 1990s. In 1992, the Israeli Embassy in Buenos Aires was attacked with a car bomb, killing 29 people. Two years later, an explosives-laden truck blew up outside the AMIA Jewish community center, killing 85 people.

Argentine courts have blamed the attack on Iran. But no one has been brought to trial in either case. Iran denies playing a role in either attack.

In the United States, New York City, another frequent target of attacks, was bracing for Iranian retaliation with police on heightened alert, but officials saw no imminent threats.