Chancellor Angela Merkel said she was very worried that German citizens might be among the victims and the wounded in an explosion in Istanbul that killed at least ten people earlier on Jan.12, Reuters international news agency reported.
"International terrorism has shown its ugly face," said Merkel. "We need to act decisively against it."
The explosion at Sultanahmet Square in Istanbul on January 12 killed 10 and injured 15 people, according to preliminary data.
It has been reported that a suicide bomber blew himself up near the central mosque when tourists were passing by.