Tanzania’s President Jakaya Kikwete has sharply criticised Kenya, Rwanda and Uganda for taking decisions at the East African Community without consulting other members.
“Do they want to create another community? Are they angry with our country or me, or do they want push us out?” Mr Kikwete said in parliament.
Nevertheless, he said Tanzania would not leave the EAC.
The speech is the latest sign of strained relations in East Africa.
Earlier this year, Mr Kikwete told Rwanda and Uganda to enter into talks with rebel groups battling them from the Democratic Republic of Congo.
The idea was dismissed by his Rwandan counterpart, leading to a diplomatic spat and rumours that the EAC was heading for disintegration.
Tanzania then sent troops to join a special UN brigade fighting another rebel group in DR Congo, the M23, which both Uganda and Rwanda are accused of backing. They deny the claims.