Pakistan, July 6 -- Three sons of Iran's late supreme leader Ali Khamenei made a rare public appearance during his funeral ceremonies in Tehran on Sunday, while his successor, Mojtaba Khamenei, remained absent from public view.

Read More: Iran begins Khamenei funeral ceremonies

Thousands of mourners gathered for a second consecutive day at Tehran's Grand Mosalla religious complex to pay their respects to Ali Khamenei and four members of his family who were reportedly killed in Israeli airstrikes on February 28.

The funeral ceremonies are being viewed as a significant moment for Iranian authorities, who are seeking to project national unity following weeks of conflict with Israel and the United States. Parliament Speaker Mohammad Bagher...