The talks were attended by ministers of the transitional government of Burundi and the main Hutu rebel group concerning the country's political and security issues.
Tanzanian President Benjamin Mkapa told reporters the talks had been "very frank" and had not "collapsed." However, Pierre Nkurunziza's faction of the rebel group, Conseil national pour la defense de la democratie-Force pour la defense de la democratie, blamed the Burundian government's intransigence for the lack of an agreement.
The U.N. Integrated Regional Information Networks said following the talks, Mkapa -- in his capacity as vice chairman of the Regional Initiative on Burundi -- said there remained "a couple of hurdles" that needed further "reflection and introspection".
He added: "After further consultations, we will resume the meetings and we hope that time will remove any further roadblocks in the implementation of the ceasefire."