Gaza Market Bombing Mystery

I am wondering if the market bombing reported in the Times on Line and the New York Times is the market bombing hoax I read about at Little Green Footballs. The video posted at LiveLeak was actually of a 2005 accidental explosion of a truck full of Hamas rockets at a Palestinian rally but was headlined "GRAPHIC Video of Israel Defense Force’s attack on Gaza civilian market" until a commenter presented convincing evidence of the hoax.

So could the reports that Israel has bombed a market in Gaza today be based on this fraud? The TimesOnLine has it:

In Gaza City an Israeli tank shell killed a family of five Palestinians, including a 14-year-old girl, when it hit their car. In a separate attack, an Israeli shell hit the main vegetable market in the city. A Times reporter at Shifa hospital saw six ambulances and seven cars – there is a shortage of emergency vehicles – ferry in the wounded. Two were badly maimed children. Medics said five people were killed in the market bombing, and 40 wounded. Israel said it had no knowledge of a market being hit.

I bolded that last sentence about Israel having no knowledge of the incident because it jumped out at me. Israel seems to have extensive knowledge and great documentation, so why not of this particular incident, I wondered.
The New York Times just gives a brief report:

In Gaza City, at least five civilians were killed and many more wounded after Israeli rockets or shells landed in the market.

The sources listed at the bottom of the page are:

Sources: United Nations Office for the Coordination of Humanitarian Affairs; The Palestinian Information Center; Israel Defense Forces

I just wanted to document this. Maybe there is both a hoax market bombing and a real market bombing. Or maybe there was a real market bombing but Hamas didn't have good video, so they manufactured this fake one from their 2005 accident. Not sure. Time will tell, I suppose.