Sinn Fein’s constituency office in Derry has been targeted by arsonists.
The incident happened in Eastway Street.
MLA Raymond McCartney said it would not deter the party from representing people in the area, and that the attack "must be condemned as an attempt to attack the democratic process".
"We will not be deterred by arsonists," he said on twitter.
Arson attack on Rath Mor Sinn Féin Office. Message to those responsible. It will be business as usual tomorrow for Derry Sinn Féin.
— Raymond McCartney (@RaymondMcCartn1) July 28, 2014
It will be business as usual at Derry Sinn Féin office at Rath Mór today. 'We will not be deterred by arsonists' - @RaymondMcCartn1
— Sinn Féin (@sinnfeinireland) July 28, 2014