The U.N. special envoy for Syria says he will speak to the U.N. Security Council and announce afterward plans for the resumption of stalled peace talks between the government and the opposition.

Staffan de Mistura says he will ask the council on Thursday for "the best options for the resumption of the talks" but told reporters that he wasn't ready to announce a planned date.

De Mistura says he wants the council to "guide" him and said the talks should resume urgently amid continued violence in the country. But he says the humanitarian situation and a wobbly truce needed to improve for the talks to be "credible."

He says the Muslim holy month of Ramadan, which begins in June, "will not be a factor" in determining the talks' timetable.