Bombs exploded at the Swiss and Chilean embassies in Rome, Italy on Tuesday wounding the two people who opened them, police and news reports said.
There was no claim of responsibility but authorities discounted domestic anarchists or protesters.
Witnesses outside the Chilean embassy said they heard a blast shortly after 3 p.m., sending police to the scene. The ANSA news agency said the person who opened the package was wounded.
Three hours earlier, a package bomb exploded inside an office in the Swiss Embassy, seriously wounding the staffer who opened it. He was taken to the hospital with hand injuries.
The Associated Press contributed to this report.