The United Nations urged Togo to respond to people's "legitimate expectations" as police clashed with protesters demanding an end to the 50-year ruling family dynasty for a third day on Friday.
The protesters have taken to the streets since Wednesday to demand that President Faure Gnassingbe step aside in the biggest challenge to his family's power since the death of his father in 2005.
Mohamed Ibn Chambas, the UN Special Envoy for West Africa and the Sahel, called on all parties "to preserve peace and security, which are valuable assets in West Africa".
Chambas, who met with Gnassingbe on Thursday, has delayed his departure and is staying in Togo for further discussions, his spokesman said.
"I remain convinced that all parties want to move forward on the reforms... in order to reach a consensus to respond to the legitimate expectations of the Togolese people," Chambas said in a statement.
Police Used tear gas to disperse protesters who were burning tyres in the opposition stronghold of Be in the capital, Lome, on Friday, Reuters news agency said.
But the unrest was less widespread than in previous days and in other areas of the seaside capital, including the centre, traffic had resumed and shops were re-opening amid a heavy police and paramilitary presence.