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The United Nations International Telecommunications Union said the website was hit late Wednesday, blocking access to its main page and interfering with a closed-door working group.

It says it is still investigating, but initial signs point to hackers.

The statement said Internet traffic was diverted to a backup website for two hours before normal operations resumed.

Officials at the conference, which brings together nearly 2,000 delegates from 193 nations, said the incident underscores the need for better cybersecurity coordination.

The 11-day gathering in Dubai also is being watched closely for the possibility that new international pacts on Internet commerce and security emerge from it.


President vetoes citizenship bill

SOFIA — Bulgaria’s president has vetoed a bill that would have offered citizenship to foreigners ready to invest at least $650,000 in the Balkan country’s struggling economy.

In a statement Thursday, Rosen Plevneliev criticized the proposal, saying that “the assessment whether to grant citizenship or not cannot be based on financial arguments.”

Bulgaria, which joined the 27-nation European Union in 2007 and is the bloc’s poorest member, is trying to reverse the severe drop in foreign direct investment from $8.5 billion in 2008 to $2.3 billion in 2011.

Parliament approved the citizenship measure last month by a simple majority, and it can do so again.

The president, who went against his own ruling party on the bill, does not have the right to a second veto.

• From wire dispatches and staff reports