May 25 (Reuters) - Medusa Mining Ltd MML.AX :
* Through Philsaga Mining Corp advises that Philippine's president has declared martial law for mindanao island
* Medusa mining says Philippine's president declared martial law for Mindanao Island following rebel activities in Marawi City on western side of island
* "Medusa does not envision any direct impact to our activites"
* Medusa's CO-O mine site is on eastern side of island Source text for Eikon: Further company coverage: MML.AX