Mohamed Ould Abdel Aziz, who came to power last year after a military coup, claimed victory Sunday in Mauritania's presidential election, CNN reported. "I am president of all Mauritanians," Aziz announced at a news conference, according to state-run Mauritania Information Agency. The news agency reported that Aziz was leading the nine candidates in early returns, with about 52.5 percent of the vote. Other election data was not immediately available.