Rescue workers in Manila are working round-the-clock to save thousands stranded in their homes by massive flooding.<br/> <br />Torrential rains in the Philippines have left the capital and northern provinces underwater and killed more than 50 people so far.<br/> <br />The influx of water has also forced hundreds of thousands to flee to higher ground and evacuation centers.<br/> <br />But there are still many who did not make it out on time, leaving them clinging to rooftops and second levels.<br/> <br />(SOUNDBITE) (Filipino) PHILIPPINE NATIONAL POLICE RESCUER ERIC BARAN SAYING:<br/> <br />"As of now, it's difficult to rescue the trapped residents, as we are battling strong currents with our life crafts."<br/> <br />Flooding has brought these communities to a standstill as the stock market, government offices and schools closed up shop and basic services remained intermittent.<br/> <br />With more wet weather in the forecast, some fear the flooding could rival typhoon rains in 2009 that killed hundreds and cost the country millions in damages.