MERSEY Ferries have launched an investigation after the Royal Daffodil was involved in a near-miss with an oil tanker today.

The two vessels came within 60 metres of one another on the River Mersey at 2.50pm and were forced to take evasive action.

The incident happened less than an hour after people had packed onto ferries to watch a naval aviation centenary 'fly-by' of 40 aircraft over HMS Illustrious.

A Mersey Ferries spokesman said that the pilots of both vessels were highly trained and experienced.

They "took appropriate action in accordance with the rules of the sea" by both veering starboard.

No one on either the Daffodil or the tanker, the Romera, was injured in the incident and no damage was caused.

Mersey Ferries will hold an investigation in conjunction with Mersey Docks and the Marine and Coastguard Agency.