A diesel spill has been spotted in English Bay—but it's not of the same level of concern as last year's oil spill.

CBC News reported that tour company Sky Helicopters noticed it and False Creek Ferries reported it to authorities at 10:30 a.m. today (April 15).

CTV reported that the Coast Guard has identified it as a small amount of diesel fuel from a recreational boat. They also stated that the slick is considered unrecoverable and will have to evaporate.

The specific source of the spill has yet to be determined.

In April 2015, Vancouver emergency crews responded to an toxic fuel spill in English Bay that was identified as bunker fuel leaking from the cargo ship Marathassa.

On April 8 of this year, the Georgia Strait Alliance marked the one-year anniversary of that spill by issuing a reminder that diluted bitumen spills remain an unresolved problem. 

“The Marathassa spill was a wake-up call," Georgia Strait Alliance executive director Christianne Wilhelmson stated. "Poor communication and lack of detailed local plans led to a seriously flawed response to a relatively small spill in the middle of Vancouver Harbour—imagine what could have happened in a worst-case scenario? It’s encouraging to see governments working towards addressing some of these gaps, and adopting a more inclusive approach to planning—and we hope they heed the advice they are hearing through community consultation.”