What are the key issues in Mozambique elections?

Mozambicans will vote next week in presidential and legislative elections that are almost certain to extend the ruling Frelimo party's half century in power, as it battles a long-running Islamist insurgency in one of Africa's largest gas fields.

Ruling party candidate Daniel Chapo, a former radio announcer and law lecturer, is widely expected to replace Filipe Nyusi as president of the southeast African nation.

Here are some key issues facing one of the world's poorest countries and its more than 34 million people as it heads to polls.

Islamist insurgency

Islamic State-linked militants launched an insurgency in the northern gas-rich province of Cabo Delgado in 2017, killing thousands of civilians, destroying livelihoods and internally displacing hundreds of thousands, aid agencies say. The insurgency has disrupted multi-billion-dollar energy projects.

Aided by regional troops and Rwanda, the government has contained the insurgency, but there has been a surge in deadly attacks since the start of the year.

Stalled gas projects

Before the wave of insurgent attacks, gas projects worth over $50 billion were earmarked for development. The projects were aimed at turning the country into a major liquefied natural gas (LNG) producer.

French energy giant TotalEnergies TTEF.PA halted work on its $20 billion LNG project and declared force majeure in 2021 after insurgents attacked the northern town of Palma, a logistics hub near the site.

Its Chief Executive Officer Patrick Pouyanné said in July the company hoped to chart a path to restart its LNG plant after the presidential election.

Another LNG project led by Exxon Mobil XOM.N and its partner Eni ENI.MI was also delayed. Exxon expects a final investment decision by the end of 2025.

Debt scandal

Mozambique is still reeling from a $1.5 billion-plus "tuna bond" scandal in which money lent to state-run firms for fishing fleets, funded in part by Credit Suisse, went missing.

Last year Credit Suisse, now owned by UBS reached an out-of-court settlement with Mozambique over the decade-old scandal, which prompted the International Monetary Fund and other donors to temporarily cut off support to the country, triggering a currency collapse and debt default.

Mozambique maintained that it was the victim of a conspiracy among shipbuilders, corrupt officials and banks. President Nyusi, who was defense minister at the time, denied any wrongdoing.

The scandal triggered criminal investigations from Maputo to New York, while senior Frelimo politicians were charged for their involvement, dealing a blow to the party's image.

Climate shocks

Mozambique is one of the most disaster-prone countries in the world, vulnerable to extreme climate shocks like droughts, cyclones and floods.

An El-Nino induced drought has ravaged southern African countries, wiping out crops, including in Mozambique. Around 1.8 million people have been affected by the drought in central and southern parts of the country, the United Nations Mozambique said in August.

Devastating cyclones also regularly hit Mozambique. Along with neighbouring Malawi and Madagascar, Mozambique bore the brunt of Cyclone Freddy last year, when the storm - one of the deadliest to hit the continent in two decades - ripped through the region, killing over 1,000 people.

Peace agreement

Frelimo has been in power since Mozambique's independence in 1975.

Shortly after independence, a 16-year civil war between Frelimo and former guerilla movement Renamo - now the country's main opposition - killed around 1 million people before a truce in 1992 ended the worst of the bloodshed.

However, violence has flared up periodically, around elections.

In a bid to bring "definitive peace", the two parties signed the Maputo Accord for Peace and National Reconciliation shortly before the elections in 2019 to end years of conflict.

Over 5,000 former combatants gave up arms and have been reintegrated into society since.