The acquisition of the warplanes comes amid ongoing fighting in northern Tigray region that started last month.

The troops are trying to recover four military personnel who went missing in an ambush on the outskirts of the Haitian capital Port-au-Prince.

The eight-year-old was in an enclosure with other children and a staff member when she was attacked.

The crash, between a moving train and another that was stopped further up the track, was caused by an "inexplicable" error, the transport minister said.