A smart camera surveillance system operating over a DTN network is presented. Low power embedded systems with connected smart cameras are used to detect and record events using motion and other triggers. Smart camera nodes can cooperate by means of a wireless personal area network. Images of events chosen by smart cameras are saved locally and transmitted via a base station node by means of a secure Delay Tolerant Network based on the Bundle protocol with implemented monitoring mechanisms. This network architecture is appropriate for surveillance of remote areas where connectivity is intermittent or frequently disrupted and events are relatively few. In this work, we evaluate the performance of the system, focusing on the communication over the DTN network in order to assess how such a network performs in various scenarios of events and availability, with or without security, and in comparison to existing communication methods.