* Graphic: https://tmsnrt.rs/2QQL0XG

* Suspect was 48 hours on the run

* Death toll from Tuesday attack rises to 3, 13 wounded

* Death of suspect followed police raids in Strasbourg

* More than 700 police involved in manhunt (Updates with death of Strasbourg suspect)

By John Irish and Christian Hartmann

STRASBOURG/PARIS, Dec 13 (Reuters) - The suspected gunman, who killed three people at a Christmas market in Strasbourg, has been killed, two police sources said on Thursday, ending his 48-hours on the run.

Cherif Chekatt was killed in the Neudorf/Meinau area of the city after a police operation was launched around 2100 hrs (2000 GMT) on Thursday about 2 kilometres from where he launched his attack on Tuesday.

Chekatt was killed after firing on police officers, who returned fire, one of the sources said.

Reuters reporters near the scene heard three to four gunshots after a huge police operation with armed forces from the BRI and RAID units. A police helicopter had been circling overhead.

The death toll from Tuesday's attack rose to three as police on Thursday combed the city in the east of France for a second day and manned checkpoints on the German border.

Police issued a wanted poster in multiple languages for Chekatt, who was the main suspect in the attack and who had been on a watchlist as a potential security threat.

Authorities say the 29-year-old was known to have developed radical religious views while in jail.

Earlier in the day armed and masked police swooped on Strasbourg neighbourhoods with elite RAID officers fanning out across three locations in late afternoon, including the area where Chekatt was last seen.

The Paris prosecutor's office said Chekatt's parents and two brothers were being held in custody.

Two of his sisters in Paris were also questioned on Thursday and one of their homes was searched, a judicial source said.

(Additional reporting by Gilbert Reilhac in Strasbourg, Antony Paone, Richard Lough, Emmanuel Jarry in Paris and Michelle Martin and Paul Carrel in Berlin; Writing by John Irish Editing by Richard Balmforth)

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