Police: 12 weapons found in Palestinian embassy where a safe blast killed the ambassador

Firemen lay on the ground near the residence of Palestinian ambassador to the Czech Republic, Jamel al-Jamal, in Prague on Wednesday, Jan. 1, 2014. The ambassador died in an explosion that occurred when he opened an office safe that officials say had been left untouched for more than 20 years. A Palestinian official says foul play is not suspected in today's death of the Palestinian ambassador to the Czech Republic. (AP Photo / CTK, Katerina Sulova) SLOVAKIA OUT (The Associated Press)

Police say they discovered a total of 12 illegal weapons at the Palestinian embassy complex where a possible booby-trapped safe killed the ambassador.

Police spokeswoman Andrea Zoulova declined to provide more details on Sunday, citing an ongoing investigation.

Ambassador Jamal al-Jamal, 56, died Wednesday after an embassy safe exploded. The career diplomat had only started his posting in October.

It remains unclear why there were unregistered weapons at the embassy and what caused the safe to explode. The death is being investigated as a case of negligence.

Residents in the Suchdol district, where the new embassy complex is based, have lodged security concerns over the incident.