The main opposition party, the Spanish Socialist Party (PSOE) called the interior minister Jorge Fernandez Diaz to urgently make a statement regarding Thursday's deaths.
The United Left (IU) party called for interior minister Diaz’s resignation. “It is unfathomable that unarmed migrants have lost their lives in this way,” IU said in a written statement on Friday.
The pressure on Ceuta and Melilla has intensified as more migrants have tried to access Spain by sea, where controls have increased, Spanish Interior Minister Jorge Fernandez Diaz said.
At least 11 people drowned while attempting to swim to the nearby Spanish enclave of Ceuta, in Morocco on Thursday.
At least 400 migrants tried to swim to Ceuta, near the Moroccan shore, according to Spanish news agencies. Two hundred people were stopped by the Moroccan security forces while 13 others were sent to a local hospital.
Authorities said 150 of the immigrants have been arrested so far.
Every week dozens of immigrants attempt to make their way into Ceuta seeking jobs in an aim to build a new life in Europe.