Thailand's soldiers, workers scrambled on to pile more than a million sandbags onto flood walls protecting northern Bangkok, after officials voiced new worries that flood defenses were weakening.
Thai PM Appeals for Unity as Floods Threaten Capital
Thai monk watches flood waters pushing into Sai Mai Temple, north edge of Bangkok, October 19, 2011.
Dog on floodwall watches people pass in Sai Mai District, North Bangkok, October 19, 2011.
Kids play on flood wall in Sai Mai District, North Bangkok, October 19, 2011.
Motorbike food cart on flooded street in Sai Mai District of North Bangkok, October 19, 2011.
Canal waters almost touching bridge in Sai Mai District, North Bangkok, October 19, 2011.
Monks keep out flood waters at Sai Mai Temple, North Bangkok, October 19, 2011.
Monk watches flood wall protecting Sai Mai Temple, North Bangkok, October 19, 2011.
Thai flood volunteers unload sandbags in front of flooded temple at north edge of Bangkok, October 19, 2011.
Volunteer flood prevention workers reinforce flood wall in Sai Mai District, North Bangkok, October 19, 2011.
Flood prevention volunteers make and load sandbags onto trucks in Sai Mai District, North Bangkok, October 19, 2011.