Threats by jihadist militants forced hundreds of polling stations in Mali to stay closed during Sunday’s presidential run-off, the government said on Monday.

The 490 polling stations that failed to open were about 2% of the total. In last month’s first round, 644 were unable to operate.

Security fears severely dampened the turnout, which a civil society group estimated at only 22%.

The vote pitted President Ibrahim Boubacar Keita against opposition leader Soumaila Cisse after an inconclusive first round in which Keita won about 41% of the vote.

Official second-round results are not expected for a few days.

Mali is high on the list of Western powers’ security concerns due to the presence of militant groups with links to alQaeda and Islamic State.

A successful election is seen as important in the effort to restore stability.

Most of the shuttered polling stations were in the northern Timbuktu region, where armed men killed the chairman of one electoral office, and the central Mopti region, Security Minister Salif Traore told reporters on Monday.

In 2013, French troops pushed Islamist militants out of areas they had seized in the desert north, but they have since regrouped and routinely attack civilians, Malian soldiers and UN peacekeepers.

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