It was a violent Monday in Nigeria. Just before noon, two explosions in quick succession struck a crowded main market in the northeastern Nigerian city of Maiduguri. On Friday, an attack at a mosque in northern Nigeria left dozens dead, with several hundred other people wounded. VOA’s Zlatica Hoke has more. For more on the security situation in northeastern Nigeria, VOA’s Vincent Makori is joined by Leo Keyen, head of VOA's Hausa Service.