One policeman has been killed and a second wounded in a shooting in central Paris, police say.
Reports say a gunman who fired on them has been shot dead. The Champs Elysees, where the shooting occurred, has been sealed off.
France goes to the polls on Sunday in the first round of the presidential election.
Jihadism is a major issue in the vote after attacks claimed by so-called Islamic State.
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SOURCE: BBC News
BREAKING: Paris police: Attacker shot police guarding metro near Champs-Elysees but was shot dead; 1 police killed, 1 wounded.
— The Associated Press (@AP) April 20, 2017