A Japanese dive bomber destroyed an ammunition truck near American field hospital No. 1 at Bataan, Philippine Islands at 1000 hours. Shortly after, Japanese aircraft returned to attack the hospital, which had large red crosses painted on the roof, killing 89 and wounding 101; a significant portion of the drug supplies were destroyed in this attack. On the front lines, Japanese assaulted positions held by US and Filipino troops of the US II Corps along the San Vicente River, penetrating the line by noon, forcing the Allies to fall back to the line at the Mamala River in the afternoon, which would also abandoned by 2100 hours for the Alangan River further to the south.
