SYDNEY, N.S. - A second attempt to free a grounded tanker from a sandy bottom off Cape Breton has been delayed due to weather conditions.

A spokesperson for the Department of Fisheries and Oceans says plans to pull the Arca 1 from a seabed near Sydney Mines Saturday evening were on hold until conditions allow for a safe operation.

Alexandra McNab says the salvage company brought in to tow the 53-metre vessel is to meet with coast guard officials to review upcoming tide and weather forecasts and determine when another attempt will be made.

Six crew had to be airlifted to safety last Sunday after the ship ran aground due to engine failure on its way to its Mexican owner Petroil Marine.

An attempt to free the ship Tuesday was unsuccessful.

Salvage crews had been expected to board the tanker Saturday afternoon to prepare for a tow attempt at high tide.