Russia will build two nuclear power plants in Iran's southern Persian Gulf littoral city of Bushehr, the spokesman for Iran Atomic Energy Organization Behrouz Kamalvandi was quoted as saying by official IRNA news agency on Wednesday. Iran and Russia reached a preliminary agreement to build at least two nuclear plants in Iran, Kamalvandi told IRNA. "According to the agreement, the capacity of each plant will be at least 1,000 megawatt and the new plants will be built by the side of the existent Bushehr nuclear power plant," Kamalvandi said.