Enquires into yesterday's dramatic sea rescue is continuing with investigators collecting evidence into the cause of the fire on board the Peejay V.

Transport Accident Investigation Commission general manager communications and investigation support Peter Northcote says two investigators have been in Whakatane today collecting evidence for the Commission's inquiry into the charter boat fire.

The Peejay V on fire. Photo: Maree Wills.

Sixty passenger and crew abandon ship about 3.45pm yesterday after a fire broke out in the engine room of the 75ft launch which was returning from a tour of White Island.

The incident happen just off the coast of Whakatane. The passenger and crew were rescued by the Coastguard and local boaties. Four people were treated in hospital for minor injuries.

Peter says the investigators have been setting up and starting interviews, speaking with the operating company, and begun to collect documentary evidence.

'The first interview priority is the crew, with contact information available for the passengers who were all pre-booked.

'The investigators expect to be in Whakatane until Thursday, at least, and will return as required during the evidence gathering phase.”

He says the inquiry is expected to take between one or two years to complete.

'Although an interim report or urgent safety recommendations could be issued at any time should these be warranted,” Peter says.

Meanwhile, the Bay of Plenty Regional Council is currently undertaking a shoreline assessment to ascertain any adverse effects from yesterday's incident.

These assessment teams include staff from the Regional Council and representatives from the Department of Conservation and Ngati Awa.

Three locations are currently being assessed; Coastlands to Whakatane and Rangitaiki river mouths, Otawairere Bay and Ohope beach with Moutohora and Raurima's islands to be checked when the sea conditions are suitable.

At this stage the Council says debris has been located covering an area about 400m in length on the Opihi coastlands. This debris is burnt material washed ashore, with no oil or adverse environmental effects evident.

It is anticipated the intensity of the fire which consumed the vessel will reduce the likelihood of any environmental effects.

The adverse weather conditions are currently preventing any further assessment of the wreck.