Myanmar's by-elections held on Sunday showed "very encouraging" signs, a European Union official invited to observe the polls told AFP.
"In the maybe 12 or 14 polling stations that my colleague and myself visited today, the signs were very encouraging," Malgorzata Wasilewska said.
"However that's definitely not enough to assume that it is indicative of how the process was conducted in other parts of the country and certainly not enough to talk about credibility of elections," she said after visiting polling stations in Yangon and the surrounding area.
Wasilewska stressed the EU did not consider it to be a proper election observer mission as they arrived only a few days ago and would usually spend three months on such tasks.
She said they hoped this was "only the beginning" as far as the election process was concerned, adding they had seen things that could be improved but nothing massive.
"Of course this will be an element of the decision" about sanctions, she said.
Sunday's polls are viewed as a key test of the new government's commitment to reforms following the end of decades of outright military rule last year.
The EU agreed in January to begin easing sanctions, lifting travel bans against the nation's leaders and pledging further action if the reforms continue.