Greece Mail Bombs
Employees and accredited journalists of the Greek Parliament stand outside the building during a controlled blast in Athens, Tuesday, Nov. 2, 2010. G...
Employees and accredited journalists of the Greek Parliament stand outside the building during a controlled blast in Athens, Tuesday, Nov. 2, 2010. Greek police say they have detonated another suspicious package outside the Bulgarian embassy in Athens, following blasts outside Parliament and the Swiss embassy. No injuries or damage have been reported after Tuesday's three small explosions, which came a day after two Greek men were arrested for allegedly planning a string of mail bomb attacks. (AP Photo/Alkis Konstantinidis)
Greece Mail Bombs
Police stand outside the Bulgarian embassy during a controlled blast in Athens, Tuesday, Nov. 2, 2010. Greek police say they have detonated another s...
Police stand outside the Bulgarian embassy during a controlled blast in Athens, Tuesday, Nov. 2, 2010. Greek police say they have detonated another suspicious package outside the Bulgarian embassy in Athens, following blasts outside Parliament and the Swiss embassy. No injuries or damage have been reported after Tuesday's three small explosions, which came a day after two Greek men were arrested for allegedly planning a string of mail bomb attacks. (AP Photo/Thanassis Stavrakis)
Greece Mail Bombs
A police explosive expert in the van prepares for a controlled blast at the Greek Parliament in Athens, Tuesday, Nov. 2, 2010. Greek police say they ...
A police explosive expert in the van prepares for a controlled blast at the Greek Parliament in Athens, Tuesday, Nov. 2, 2010. Greek police say they have detonated another suspicious package outside the Bulgarian embassy in Athens, following blasts outside Parliament and the Swiss embassy. No injuries or damage have been reported after Tuesday's three small explosions, which came a day after two Greek men were arrested for allegedly planning a string of mail bomb attacks. (AP Photo/Alkis Konstantinidis)
Greece Mail Bombs
Plain clothed police officers, right rear, prepare for a controlled blast at a private delivery company in Athens, Tuesday, Nov. 2, 2010. Greek polic...
Plain clothed police officers, right rear, prepare for a controlled blast at a private delivery company in Athens, Tuesday, Nov. 2, 2010. Greek police say small parcel bombs exploded at the Swiss and Russian embassies in Athens, and suspicious packages were detonated outside Parliament, the Bulgarian embassy and a courier company. (AP Photo/Dimitri Messsinis)
Greece Mail Bombs
A police explosive unit's van arrives at the Bulgarian embassy for a controlled blast in Athens, Tuesday, Nov. 2, 2010. Greek police say they have de...
A police explosive unit's van arrives at the Bulgarian embassy for a controlled blast in Athens, Tuesday, Nov. 2, 2010. Greek police say they have detonated another suspicious package outside the Bulgarian embassy in Athens, following blasts outside Parliament and the Swiss embassy. No injuries or damage have been reported after Tuesday's three small explosions, which came a day after two Greek men were arrested for allegedly planning a string of mail bomb attacks. (AP Photo/Thanassis Stavrakis)
Greece Mail Bombs
Police stand outside the Greek Parliament after a controlled blast in Athens, Tuesday, Nov. 2, 2010. Greek police say they have detonated another sus...
Police stand outside the Greek Parliament after a controlled blast in Athens, Tuesday, Nov. 2, 2010. Greek police say they have detonated another suspicious package outside the Bulgarian embassy in Athens, following blasts outside Parliament and the Swiss embassy. No injuries or damage have been reported after Tuesday's three small explosions, which came a day after two Greek men were arrested for allegedly planning a string of mail bomb attacks. (AP Photo/Alkis Konstantinidis)
Greece Mail Bombs
Plain clothed police officers, right rear, prepare for a controlled blast at a private delivery company in Athens, Tuesday, Nov. 2, 2010. Greek polic...
Plain clothed police officers, right rear, prepare for a controlled blast at a private delivery company in Athens, Tuesday, Nov. 2, 2010. Greek police say small parcel bombs exploded at the Swiss and Russian embassies in Athens, and suspicious packages were detonated outside Parliament, the Bulgarian embassy and a courier company. (AP Photo/Dimitri Messsinis)
Greece Mail Bombs
A police explosive expert, left, prepares a controlled blast at a private delivery company in Athens, Tuesday, Nov. 2, 2010. Greek police say small p...
A police explosive expert, left, prepares a controlled blast at a private delivery company in Athens, Tuesday, Nov. 2, 2010. Greek police say small parcel bombs exploded at the Swiss and Russian embassies in Athens, and suspicious packages were detonated outside Parliament, the Bulgarian embassy and a courier company. (AP Photo/Dimitri Messsinis)
German officials say a package that may contain explosives has been found in the mailroom of Chancellor Angela Merkel's office.
In Athens, small mail bombs exploded outside the Russian and Swiss embassies Tuesday and police destroyed at least three more. They blamed the attacks on far-left domestic extremists.
Merkel's spokesman Steffen Seibert says "it cannot be ruled out that the package contains explosives."
The attacks in Greece began Monday when a mail bomb addressed to the Mexican embassy wounded one worker. Two suspects were arrested with carrying mail bombs addressed to French President Nicolas Sarkozy and the Belgian Embassy.
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Associated Press Writers Elena Becatoros and Derek Gatopoulos in Greece, and Colleen Barry in Geneva and Jenny Barchfield in Paris contributed to this report.
