The suspended chief justice of Nigeria has, for the third time, failed to turn up at a tribunal where he is due to answer charges that he failed to declare his assets.

Last month President Muhammadu Buhari suspended Walter Onnoghen over the allegations - a controversial decision which drew sharp criticism within Nigeria and from the US and the European Union.

The move was widely seen as political as Nigeria's most senior judge would play a key role in any disputes that arise from the general election.

Mr Onnoghen has been ordered to appear at the tribunal on 13 February - just three days before the vote.