The president of the Maldives has declared a state of emergency, giving sweeping powers to security forces ahead of an opposition rally planned by the party of jailed former President Mohamed Nasheed. Nasheed was the Maldives’ first democratically elected president, known internationally for his work on climate change. He was ousted in 2012 in what he called an armed coup by supporters of his predecessor, Maumoon Abdul Gayoom. Nasheed is now serving a 13-year sentence for ordering the arrest of a judge appointed by Gayoom. The current president, Abdulla Yameen, is Gayoom’s half-brother.