Israel calls up reservists

ISRAEL (NEWSCHANNEL 3) - Israel is calling up 16,000 more reservists, signaling what could be an increased offensive.

Large explosions continue to light up the sky above Gaza City as Israel continues to bombard the area with airstrikes.

17 were killed when tank shells fell on a market during a four hour cease fire.

The Israeli army says it honored the cease-fire, except in areas where the military was already engaged, which included the area around the market.