More than 50,000 Ethiopians from the embattled region have fled to Sudan due to violence
Ethiopian official says UN staffers were detained and released
UN, Ethiopia agree to provide humanitarian aid to disputed northern territory
Weeks of war have killed thousands and worsened humanitarian crisis
The central government, meanwhile, has not confirmed whether there were civilian casualties in a Saturday offensive
Abiy Ahmed warns civilians to disarm and stay inside or face 'no mercy' as military closes in on Tigray capital of Mekele
Agencies brace for full-scale humanitarian crisis as number of those fleeing to neighboring Sudan is expected to reach 200,000
As fighting intensifies in northern region, thousands flee to neighboring countries
Government has issued arrest warrants for removed Tigray officials
The leaders in the northern Tigray region are accused of treason and terrorism
Clashes in the Tigray region over the past week between Ethiopian government forces and Tigray regional forces prompt at least 7,000 refugees to flee