Paris (CNN) -- French police traded gunfire Saturday in a Strasbourg apartment building with the top suspect in a September supermarket bombing, leaving the 33-year-old man dead and one police officer wounded, prosecutors said. The incident was part of a far-reaching, coordinated counterterrorism operation targeting radical Islamists that led to 10 arrests, Paris prosecutor Francois Molins told reporters. A chief focus of Saturday's sweep was Jeremy Sidney, a 33-year-old former convict who at one point "converted to radical Islam," Molins said. The prosecutor said Sidney's DNA was found on a small explosive device thrown September 19 into a kosher supermarket in Sarcelles, outside Paris, wounding one customer.
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NEW: Slain suspect "converted to radical Islam," like others targeted, a prosecutor says
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NEW: 10 people nationwide are detained and accused of having terrorist ties, he adds
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NEW: Authorities seize ammunition and a list of possible targets, a prosecutor says
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France's president hails law enforcement officers for their actions in the case
Jeremy Sidney
Sidney
Police officers went Saturday morning to an apartment building in Strasbourg, in eastern France, that was home to one of @placeholder's two "religious wives," said Molins.