May 7 (Reuters) - Canada's main stock index edged higher on Thursday, supported by rising expectations of a near-term temporary truce between the United States and Iran to halt the war, with mining shares adding to gains.

At 9:30 a.m. ET, the Toronto Stock Exchange's S&P/TSX composite index was up 0.1% at 34,027.24 points.

(Reporting by Tharuniyaa Lakshmi in Bengaluru; Editing by Diti Pujara)