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The Palestinian ambassador to the Czech Republic was killed in what authorities said appeared to be an accidental explosion in his Prague home on Wednesday.

Jamal al-Jamal died of his injuries at the hospital after the blast in the Czech capital on New Year's morning, Czech Republic Foreign Ministry spokesman David Frous told NBC News.

Frous declined to comment further, except to say it did not look likely the blast was an attack.

Reuters quoted the Palestinian Foreign Ministry as saying al-Jamal had been trying to get into a safe that was recently moved to his two-story house. The news agency, citing a Czech government source, said the explosion was probably caused by a security device on the safe.

Some safes are fitted with mechanisms to destroy secret documents in the event they are tampered with.

Reuters contributed to this report.