Niger holds tense vote in which President Issoufou runs for second term

By Abdoulaye Massalaki NIAMEY (Reuters) - Niger closed its borders and ramped up security on Sunday for an election in which President Mahamadou Issoufou is running for a second term with a promise to crush Islamist militants and develop one of the poorest countries in the world. Around 5,200 candidates also vie for 171 legislative seats on Sunday.