A "large amount" of artificial reef is washing up on a Mount Maunganui beach today.

According to a Facebook post by Bay of Plenty Regional Council, the artificial reef is washing up near the Sutherland Road beach access.

"Our officers have assessed the site, and its removal is planned for later tonight," the post reads.

"Take care if you are swimming in this area today."

Residents who spot this material on the shoreline in the future are encouraged to report it by phoning 0800 884 883.