Story highlights Indonesia protests executions, says didn't receive formal warnings

Both women had worked as domestic helpers in Saudi Arabia before being convicted of murder

(CNN) Saudi Arabia has executed a second Indonesian maid despite protests from Jakarta, which is itself facing fierce criticism for its failure to heed calls for clemency for a number of foreigners on death row.

The Indonesian government summoned the Saudi ambassador to the foreign ministry on Thursday after learning that 37-year-old Karni Bt. Medi Tarsim had been beheaded, without official warning.

Karni was sentenced to death in March 2013 for killing her employer's four-year-old child. She was the second Indonesian domestic worker executed by the Saudis this week, following the death of Siti Zaenab Bt. Duhri Rupa on Tuesday -- the execution again carried out with Indonesian officials receiving no prior warning.

"That is our main issue. It's not that suddenly there was an execution. We didn't know when it would take place. Still, we took over a hundred steps to try to free (Siti) from execution," said Arrmanatha Nasir, spokesman for Indonesia's Ministry of Foreign Affairs.

Siti, 47, was convicted of killing her employer's wife in 1999, but the death penalty was delayed until the youngest of the victim's sons reached puberty and was old enough to consider requesting her pardon. He didn't.

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