27 Feb 2021 / 03:33 H. (Adds statement by Amnesty International, rights groups) DUBAI, Feb 26 (Reuters) - Iran is investigating the fatal shootings of at least two Iranians this week at the border with Pakistan, and Islamabad has handed over the body of one of the victims, the Iranian foreign ministry said on Friday. Monday's shooting of at least two people carrying fuel across the border led to protests that spread across the southeastern Iranian province of Sistan-Baluchestan. Iran said the shooting occurred in Pakistan, but Pakistani border officials said protests broke out after Iranian forces fired at people involved in the illegal Iranian fuel trade.