This attack spurred the Mauretanians into action, and with the help of the mercenary Publius Sittius they invaded and seized much of Numidia. Following Caesar invasion of Africa and victory at the Battle of Thapsus many prominent Optimates fled westward only to find their escape blocked by the Mauretanians, with many captured and killed and others committing suicide. Pompey the Younger, still in the Balearics, would later go to Spain and meet with any other remaining Optimates, who would launch a final rebellion against Caesar which was put down at the Battle of Munda where the Younger Pompey was killed.