Some embodiments herein disclose a network node (QQ160) for handling communication in a narrowband internet of things network or a machine type communication network. The network node is configured to transmit an indication to a user equipment, UE, (QQ110) while the UE (QQ110) is in a connected mode or is released from the connected mode, wherein the indication indicates an update of at least a part of a system information, SI, of a service area of the narrowband internet of things network or the machine type communication network.