Turkish police have arrested a man who claimed he was plotting to kill President Barack Obama during his visit to Turkey.

The Secret Service in Washington said Monday night that Turkish National Police arrested the man last Friday in Istanbul. Secret Service spokesman Ed Donovan said the president was never in any immediate danger.

White House spokesman Robert Gibbs, who was with Obama in Istanbul on Tuesday, declined to comment on the incident.

Donovan said the Secret Service is not releasing any information about the suspect. As standard procedure involving a threat against the president overseas, the Secret Service is following up with Turkish authorities regarding the case, Donovan said, AP reports.