By Elizabeth Pineau and Michel Rose PARIS (Reuters) -French Prime Minister Francois Bayrou on Tuesday opened the door to renegotiating a disputed pension reform in a bid to win over left-wing lawmakers he needs to pass the 2025 budget.

French Prime Minister Francois Bayrou on Tuesday warned parliament about his country's spiralling debt and said he was ready to reopen talks on pension reform, hoping to avoid defeat in any no-confidence vote that could prolong the country's rumbling political crisis.

French Prime Minister Francois Bayrou is set to outline modifications to pension reform plans on Tuesday in a bid to secure support from the left to pass his 2025 budget. Previous attempts to pass a budget led to deadlock and the collapse of his predecessor's government.