The Airports Commission has confirmed that all suggestions on the best ways to expand the UK's runway capacity are still being considered.

A number of MPs and independent organisations are currently at loggerheads, with some claiming that a brand new hub airport is required to accommodate more passengers and cargo in the south-east, while others believe that Heathrow should be expanded.

However, the Airports Commission - which was set up in November 2012 to govern the situation - is ruling nothing out as yet.

The body has published the Airport Operation Models report and this is the fourth in a series of papers that will be used to decide on the best course of action.

Chair of the group Sir Howard Davies said it is important that all arguments are given "full and detailed consideration".

"This paper explores some of the possible future scenarios, which carry different implications for airport shape and capacity," he remarked.

Bosses at Heathrow Airport have today (May 17th) warned the Airports Commission there is "no easy fix" to resolve the nation's airport capacity crisis.