ARBIL, Iraq (AFP) - At least two Iranian Kurdish rebels and one member of Tehran's elite Revolutionary Guards were killed during clashes along the Islamic Republic's border with Iraq, the two sides said on Sunday. The fighting came less than a week after Iran warned that it reserved the right to attack the bases of the PJAK, or the Party of Free Life of Kurdistan, in neighbouring Iraq's autonomous Kurdish region. "Since midnight (2100 GMT Saturday), heavy battles have been ongoing between PJAK and the Iranian army, resulting in injuries among elements of our group," rebel spokesman Sherzad Kamankar told AFP.