Tehran, Aug 9 (UNI) A top Iranian military commander said Tehran considered avenging the assassination of Hamas Politburo Chief Ismail Haniyeh as its duty, the official news agency IRNA reported on Friday.

Esmaeil Qa'ani, commander of the Quds Force of Iran's Islamic Revolution Guards Corps, made the remarks in a letter congratulating Yahya Sinwar on his appointment as Hamas politburo chief and extending condolences for Haniyeh's death, according to the report.