Somalia said on Thursday it was expelling Ethiopia's ambassador, closing two Ethiopian consulates and recalling its own ambassador to Addis Ababa amid a dispute over Ethiopia's plan to lease coastline in the breakaway region of Somaliland.
Ethiopian foreign ministry spokesperson Nebiyu Tedla said Ethiopia did not have any information on the matter, which was first officially announced by Somalia's prime minister's office.
"This follows ... the actions of the Federal Democratic Republic of Ethiopia which infringe upon Somalia's sovereignty and internal affairs," Somalia's foreign ministry said in a statement.
Somalia has given Ethiopia's ambassador 72 hours to leave the country, and ordered the closure of the Ethiopian consulates in Somaliland and the semi-autonomous region of Puntland, the foreign ministry said.
Two Somali officials said the moves were linked to a dispute over a memorandum of understanding landlocked Ethiopia agreed on Jan. 1 to lease 20 km (12 miles) of coastline in Somaliland - a part of Somalia which claims independence and has had effective autonomy since 1991.
Ethiopia said it wants to set up a naval base there and offered possible recognition of Somaliland in exchange - prompting a defiant response from Somalia and fears the deal could further destabilize the Horn of Africa region.
Somali President Hassan Sheikh Mohamud previously called the port deal illegal and said in February his country would "defend itself" if Ethiopia were to go ahead with it.
Tensions between Mogadishu and authorities in Puntland also rose over the weekend when Puntland's state council said it had withdrawn from the country's federal system and would govern itself independently in a dispute over constitutional changes.
The move to expel the ambassador and shut down the consulates raises concerns over the fate of 3,000 Ethiopian soldiers stationed in Somalia as part of an African Union peacekeeping mission fighting militants from al Shabaab, an al-Qaeda affiliate.
Mohamud said in February he did not plan to kick them out.