<p>The investigation was conducted from 1st to 7th March 2023. We engaged stakeholders, reviewed records, and searched for cases using the Lassa Fever standardised case definition. We conducted contact tracing and environmental assessment for risk factors including collecting oral, anal and blood samples from mice for RT-PCR testing. Lassa fever awareness among the community and health workers was assessed. Data were analysed as frequencies and proportions and presented in tables, charts, and maps.</p>