Funerals are set to begin for the five police officers shot dead by a sniper during a protest in central Dallas last week.

Services will be held on Wednesday for Dallas Police Senior Corporal Lorne Ahrens, Dallas Police Sergeant Michael Smith and Dallas Area Rapid Transit Officer Brent Thompson.

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Mr Ahrens' funeral will take place in Plano, Texas. Mr Smith's funeral at the Farmers Branch church he and his family attended will be followed on Thursday with a service at the Dallas church where he worked in security.

After a Dallas memorial service, Mr Thompson's funeral will be at a church in Corsicana, the town south of Dallas where he lived.

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Dallas Police Officer Michael Krol's funeral is set for Friday, and Dallas Police Officer Patrick Zamarripa's funeral will be held on Saturday.

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