<div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>About 200 firefighters have been deployed to stop a massive factory fire in Sydney's west, with authorities warning it could burn for days.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>Emergency services were called to a waste management business in Kurrajong Street, North St Marys at about 10.50pm last night.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>Explosions were heard as the blaze began, with some being felt several kilometres away in Penrith.</span></div></div><div><div id="adspot-mobile-medium"></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><strong><span>READ MORE: </span></strong><a href="https://www.9news.com.au/world/tom-stoppard-dead-88-british-playwright-academy-award-shakespeare-in-love/be6ecb57-d622-4315-b1ee-467caf723d24" rel="" target="_blank" title=""><strong><span>Award-winning British playwright dead at the age of 88</span></strong></a></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>A fireball was seen high above the site, reaching 150 metres into the air.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>The fire could still burn for several days, as hazardous materials at the business, a recycling centre, is currently feeding the inferno.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>One firefighter was treated at the scene for minor burns, with fire crews being praised for their valiant efforts to contain the raging fire.</span></div></div><div><div class="OUTBRAIN" data-reactroot="" data-src="//www.9news.com.au/national/north-st-marys-fire-sydney/4cbcf0c6-97a4-4917-bb96-5e4bc96ddf66" data-widget-id="AR_5"></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>"There's been some amazing firefighting going on," Fire Commissioner Jeremy Fewtrell said. </span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><strong><span>READ MORE: </span></strong><a href="https://www.9news.com.au/world/hong-kong-fire-grateful-to-be-alive-residents-who-escaped-the-hong-kong-apartment-blaze-wonder-what-comes-next/7e973800-425d-4f0e-87ee-1ff9ffdd17b8" rel="" target="_blank" title=""><strong><span>Survivor's incredible story from inside the Hong Kong horror blaze</span></strong></a></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>"We've had an incredibly large explosion, and so luckily all of our firefighters were able to be safe through that."</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>Whilst the cause of the fire remains unknown at this stage, police are conducting their own investigations into the incident.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>A 200 metre exclusion zone has been put in place, with motorists urged to avoid the area.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><span>Police are urging anyone with information on the fire or who was in the area at the time with phone or dashcam footage to contact Penrith Police Station or Crime Stoppers on 1800 333 000.</span></div></div><div class="block-content"><div class="styles__Container-sc-1ylecsg-0 goULFa"><a href="https://www.9news.com.au/national/how-to-follow-9news-digital/29855bb1-ad3d-4c38-bc25-3cb52af1216f"><em><strong><span>DOWNLOAD THE 9NEWS APP</span></strong></em></a><em><strong><span>: Stay across all the latest in breaking news, sport, politics and the weather via our news app and get notifications sent straight to your smartphone. Available on the</span></strong></em><span> </span><a href="https://apps.apple.com/au/app/9news/id1010533727"><em><strong><span>Apple App Store</span></strong></em></a><span> </span><em><strong><span>and</span></strong></em><span> </span><a href="https://play.google.com/store/apps/details?id=nineNewsAlerts.nine.com&amp;hl=en_AU&amp;pli=1"><em><strong><span>Google Play</span></strong></em></a><em><strong><span>.</span></strong></em></div></div>