Nigeria, June 22 -- Several world leaders have reacted to the US attack on three nuclear sites in Iran, with many raising concerns about the potential escalation of the Israel-Iran war, which has dragged on for over a week.

PREMIUM TIMES reports that the war began on 13 June after Israel launched air strikes on Iran. The attacks led to retaliation and further attacks, causing the death of hundreds of people in Iran and dozens of people in Israel.

Although the US initially distanced itself from the crisis, President Trump later disclosed that the US was likely to get involved.

On Sunday, in the second week of the war, the United States launched an attack on Iran, officially entering the Israel-Iran war.

The airstrikes damaged Iran's nu...