Crews busy with more grass fires in Swansea and Neath 5 April 2013 Last updated at 14:49 Firefighters are tackling an outbreak of new grass fires in west Wales which are being spread by strong winds. Over 180 fires have been tackled since March, with some started deliberately. Crews are now dealing with new incidents at Manselton and Townhill in Swansea, as well as two near Neath. They have also returned to Gelliwastad Mountain where another blaze lit the Swansea skyline over Morriston Hospital on Wednesday night. The separate fires near Neath are being fought at Seven Sisters and Glynneath by Mid and West Wales Fire and Rescue Service. A spokesperson said: "The current weather conditions have caused the fires to spread at a significant rate and have proved difficult to extinguish, requiring a large amount of resources. The effects of grass fires have a major impact on local communities, budgets and resources. Incidents began on 18 March with 21 grass fires in Carmarthenshire, four in Ceredigion, 42 in Neath Port Talbot, 24 in Pembrokeshire, 26 in Powys and 69 in Swansea. Some fires are thought to have been started deliberately with children currently on their school holidays. In north Wales there were 11 deliberate fires over the Easter weekend of which three were grass blazes. South Wales Fire and Rescue Service said they were called to about 75 grass fires on Tuesday.