Johannesburg - Four men who attacked the home of economist Dawie Roodt made off with the family's cellphones, laptops and bags, his secretary Erika Botha told News24 on Friday."There could have been more things taken but that's all we know about now," she said.Roodt and his family were attacked at their home in a secure estate in Pretoria East at around 19:30 on Thursday.Roodt was apparently accosted by the attackers when he went to open a gate for his daughter who was returning home from university.He was stabbed in the arm and also sustained some head injuries."He has already gone for an operation. He is okay but he will be undergoing more operations," Botha said.Roodt's wife and children escaped the incident uninjured after they locked themselves in a room during the attack.Botha said the family was traumatised.TV critic Thinus Ferreira reported that Roodt was stabbed several times by two of the four robbers when he freed himself from ropes and tried to protect his family. Eskom’s load shedding kicked in during the robbery, which reportedly caused the robbers to flee in the dark.Financial services company, Efficient Group, of whom Roodt who is the chief economist, said it had been inundated with phone calls from concerned friends since the news of the attack broke on Friday morning.The company will release a detailed statement on the incident later on Friday.