Cook Islands Police are improving safety and security measures on the main island of Rarotonga following two fires this month that gutted two retail shops in the village of Arorangi.
The fires are being treated as suspicious.
Cook Islands Police, the local fire service and two forensic fire investigators from New Zealand have teamed up to investigate the incidents which occurred within a week of each other.
Commissioner of Police Maara Tetava has confirmed that the Rarotonga duty roster has been changed to boost checkpoints, surveillance and patrols by Police.
Commissioner Tetava has called for witnesses to the fires or anyone with knowledge about the incidents to come forward, including any information about any suspicious activity.