Two men arrested over 18 allegedly deliberately lit fires in Ashwood, in Melbourne's south-east

Two men have been arrested in Ashwood over a series of fires in suburban Melbourne.

The men, aged 31 and 32, were arrested on Friday morning over 18 fires that were lit in the Ashwood area between February 3 and Friday.

They were charged at an out-of-sessions hearing with 18 counts of intentionally cause bushfire.

The 31-year-old has been remanded to appear at Melbourne Magistrates Court on Saturday.

The 32-year-old was bailed to appear at Melbourne Magistrates Court on Monday.