The Saudi authorities have executed three more prisoners convicted in separate murder cases, bringing to eight the number beheaded in two days.
One of those beheaded by sword was a Saudi national convicted of beating to death his grandmother.
The other two - one a Saudi, the other from Yemen - were reported to have shot their victims.
The kingdom has executed more than 100 people this year - one of the highest figures on record.
Thursday's executions took place in Salel province near the Saudi capital of Riyadh, the interior ministry said.
On Wednesday, five Saudi men were beheaded in the city of Medina after being convicted of raping and killing a young boy.
Saudi Arabia upholds some of the strictest penal codes in the Islamic world, with public executions by the sword of people convicted of murder, drug trafficking, rape and armed robbery.
Human rights groups say sentences handed down in Saudi Arabia are often arbitrary and defendants lack rights to legal representation.