Storm Dennis is causing a second weekend of disruption with bad weather wreaking havoc across the UK.

Heavy rain and strong winds have struck the country, and the Ministry of Defence (MoD) has deployed British Army personnel to assist people in West Yorkshire, which was badly hit by flooding during last weekend's Storm Ciara.

Flights have been grounded for safety reasons, with British Airways and easyJet confirming cancellations.

More than 230 easyJet flights in and out of the UK on Saturday have been cancelled, while several sporting fixtures were also called off due to the weather.

The US National Weather Service's Ocean Prediction Centre reported winds up to 92mph and waves that could reach more than 100ft (30m) high across the North Atlantic early on Saturday.

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Soldiers from The Highlanders, 4th Battalion, the Royal Regiment of Scotland in Mytholmroyd assisting with flood defences, in in West Yorkshire

Forecasters were expecting winds to reach 70mph along coastlines, while some parts of the country could witness up to 4.7in (12cm) of rain.

Experts have warned that conditions amount to a "perfect storm", with hundreds of homes at risk of flooding.

The Met Office has issued eight weather warnings covering most of the UK this weekend.

A spokesman for British Airways said they are "merging a small number of Heathrow short-haul flights to the same destination and using larger aircraft where possible to minimise disruption", while a spokeswoman for easyJet confirmed 234 cancellations.

Ryanair said all its flights are operating as normal.

A spokeswoman for Heathrow Airport said: "To minimise the number of flights cancelled at short notice we have taken the joint decision, alongside our airline and air traffic partners, to pre-emptively consolidate today's schedule."

A spokesman for Luton Airport said the airport is "fully operational", but added that "a number of cancellations" are expected later on Saturday.

The MoD said 75 personnel from 4th Battalion, Royal Regiment of Scotland, will be aiding the Environment Agency (EA) in constructing barriers and repairing flood defences in Ilkley and Calderdale, while 70 Reservists from 4th Battalion, The Yorkshire Regiment, have also been tasked with providing support where required.

Defence Secretary Ben Wallace said: "Our armed forces are always ready to support local authorities and communities whenever they need it. The rapid response of the Army today will help with provision of flood relief to local communities in West Yorkshire."

The EA said flooding is likely to be worse than under last weekend's Storm Ciara due to rain falling on already saturated ground.

In England alone, 800 properties were left flooded when Storm Ciara struck, the EA said.

Elsewhere, a Royal Navy warship has been dispatched to help in an urgent search for a man in the sea off the Kent coast.

Lifeboats and the Coastguard helicopter are scouring the sea near Margate Harbour after reports of a man overboard, HM Coastguard said.

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Flood defences are being prepared as the UK is braced for widespread weather disruption for the second weekend in a row as Storm Dennis sweeps in

Power cuts are also expected and there is a good chance that train and buses will see cancellations or delays and roads closed.

The Met Office said the "main areas of concern" on Saturday are north and south-west England and Wales, with the South East bearing the brunt more on Sunday.

At just after 1pm on Saturday, there were 17 flood warnings - meaning flooding is "expected" - and more than 180 flood alerts - meaning flooding is possible - in places across the country.

Network Rail has advised passengers to expect disruption on many routes due to flooding and to allow more time for their journeys.

Meanwhile, people living near the railway are being urged to secure any loose items in their gardens, after several trampolines were blown on to tracks and overhead electric wires last weekend, blocking lines.