According to Bloomberg, Senegal’s Eurobonds fell sharply after President Macky Sall postponed this month’s presidential elections and as lawmakers gathered to consider extending his mandate until a successor takes power.

Police reinforced security in the capital on Monday, a day after clashes with opposition supporters on the streets of Dakar that led to the arrest of officials including former Prime Minister Aminata Touré and Anta Babacar Ngom, one of the candidates in the election. The African Union and the Economic Community of West African States called for talks to resolve the crisis.

The West African nation’s dollar bonds due in 2033 fell 2.3% to 84.83 cents on the dollar by 8:48 a.m. in London, while its 2037 debt slumped 3% to 71.03.

Sall, whose final term ends on April 2, delayed the vote to allow an investigation by parliament into how the nation’s Constitutional Council determined who could take part in the election. Popular opposition leader Ousmane Sonko and Karim Wade, the son of Sall’s predecessor, Abdoulaye Wade, have both been excluded from the poll.

It’s the first time an election has been postponed in Senegal, which is considered one of Africa’s more stable democracies. The delay raises concerns that political instability may increase in a region where a series of military coups over the past three years have toppled the governments of four countries.

Lawmakers are scheduled to meet at 11 a.m. in Dakar to consider the proposal to extend Sall’s mandate for six months.