There appears to be a thing happening on the Eritrea/Ethiopia border. Accusations and denials abound. Analysis form Simon Allison here.
Meanwhile, Rwanda has sent some more Burundian back to their own country, allegedly over allegations of espionage, as tensions between the Burundi and Rwanda continue to rise. It is unclear whether the Burundians expelled were recent arrivals, asylum seekers, refugees and/or people who had been living in Rwanda for some time.