MAIDUGURI, Nigeria( Reuters)-Armed men on motorbikes killed at least 18 people at a mosque in Niger state in northern Nigeria, two residents told Reuters on Monday.... " They came and went straight to the mosque and shot at worshippers without sparing anyone," resident Abdulganiyu Hassan told Reuters. Hassan said they abducted more than 10 others.... A Niger state police spokesman did not immediately respond to calls or messages seeking comment....