Ivory Coast voters cast ballots Saturday in a parliamentary election that is a key test of stability four months after a presidential vote marked by deadly violence.

Grappling with a deep political crisis, President Alassane Ouattara has offered an olive branch to his former rival, Laurent Gbagbo, whose party has now lifted a decade-long boycott of elections.

ivory coast Armed men attacked a hotel in the Ivory Coast in the city of Grand Bassam. Pictured: Locals rest on the beach near Grand Bassam on April 18, 2015. Photo: AFP/Getty Images

More than 1,500 candidates are vying for the votes of roughly seven million people in a contest for the 255-seat National Assembly in the world's top cocoa grower, a former haven of peace and prosperity in troubled West Africa.

A masked Ouattara voted in the plush Cocody neighbourhood of Abidjan, Ivory Coast's main city and economic hub.

"I hope that the unfortunate events of the presidential elections of 2010 and 2020 are past us," he said, referring to poll-linked violence that claimed thousands of lives.

In contrast to the bloodshed of October's presidential polls, campaigning has been as peaceful as it has been enthusiastic ahead of Ivory Coast's election In contrast to the bloodshed of October's presidential polls, campaigning has been as peaceful as it has been enthusiastic ahead of Ivory Coast's election Photo: AFP / Issouf SANOGO

Micheline Irielou, a 43-year-old who lives in Abidjan's central Plateau district where all government offices are located, called for change.

"We're tired. We don't have much to eat. In my neighbourhood we don't have water and that's why I came to vote. So that it changes," she said.

Laurent Gbagbo, left, and Alassane Ouattara, at the height of their tussle for power in December 2010 Laurent Gbagbo, left, and Alassane Ouattara, at the height of their tussle for power in December 2010 Photo: AFP / ISSOUF SANOGO

In contrast to the bloodshed that marked the October 31 presidential poll, campaigning has been as peaceful as it has been enthusiastic.

All the candidates have pledged support for peaceful elections and signed up to a code of conduct.

"The prospect (of a high turnout) favours peaceful elections," said Adama Bictogo, a candidate for the constituency of Agboville, near Abidjan.

Polls open in Abidjan as Ivory Coast holds parliamentary elections in a key test of stability after presidential elections last year were marred by violence. Polls open in Abidjan as Ivory Coast holds parliamentary elections in a key test of stability after presidential elections last year were marred by violence. Photo: AFPTV / Evelyne AKA

In the last legislative vote in December 2016, Ouattara's RHDP party teamed up with the centre-right Ivory Coast Democratic Party (PDCI), winning an absolute majority with 167 seats.

But last year's crisis has shattered that deal.

All the candidates have pledged support for peaceful elections and signed up to a code of conduct All the candidates have pledged support for peaceful elections and signed up to a code of conduct Photo: AFP / Issouf SANOGO

In an unprecedented move, the PDCI has forged an election alliance with the centre-left coalition Together for Democracy and Solidarity (EDS), whose driving force is Gbagbo's Ivorian Popular Front (FPI).

Michel Gbagbo, son of Ivory Coast's former president Laurent Gbagbo, called for the election to be calm and peaceful Michel Gbagbo, son of Ivory Coast's former president Laurent Gbagbo, called for the election to be calm and peaceful Photo: AFP / Issouf SANOGO

Their declared aim is to prevent Ouattara and his party from "consolidating absolute power".

As a result, some commentators believe it could be the most open election in years, with the prospect that independents could hold the balance of power.

The October 31 presidential vote was marred by violence that claimed 87 lives and left hundreds of wounded.

Clashes had erupted over Ouattara's bid for a third term -- a plan that critics said sidestepped constitutional limits.

The 79-year-old was returned to power in a landslide thanks to an opposition boycott, but the country was mired in crisis.

Ouattara reached out to Gbagbo, whom he forced out in April 2011 after a post-election civil war that claimed several thousand lives and left the country deeply split.

After his ouster, Gbagbo, 75, was flown to the International Criminal Court in The Hague to face war crimes charges arising from that conflict.

He was acquitted in January 2019 and is now living in Brussels pending the outcome of an appeal.

Ouattara, in his declared vow to seal "national reconciliation," has issued Gbagbo with two passports, one of them a diplomatic pass.

Gbagbo previously said he hoped to return in December but his supporters now say it will be in mid-March, and have set up a committee to prepare a spectacular welcome.

Gbagbo's son Michel, a candidate in Saturday's election, voted in Abidjan and expressed the hope that "everything will pass off calmly and peacefully".

He asked his supporters "not to react to any provocation".

"I want the vote to be calm and peaceful," she added.