The fighting in Tal Abyad spilled over, once again, into neighboring Turkey on Sunday.

Clashes between the Syrian regime and rebels have raged for days near the Tal Abyad border gate, which rebels seized last week to the glee of Turkish supporters.

But ongoing battles in the city of Tal Abyad have resulted in mortars hitting villages in the Turkish town of Akcakale, the town's mayor said, according to Turkey's Anadolu Agency. It was unclear whether there were any casualties.

"We wish the war will end soon in our neighbor Syria," Akcakale Mayor Abdulhakim Ayhan told Anadolu.

Diplomat: Increasing pressure on al-Assad a goal at U.N.

As dignitaries from nations around the world converge on New York this week for the U.N. General Assembly, what to do about Syria will be high on the agenda, Germany's top diplomat said Sunday.

"To increase pressure and to increase the isolation of the regime of al-Assad is one of the goals this week," said Foreign Minister Guido Westerwelle of Germany, whose nation this month is serving as president of the U.N. Security Council.

Numerous countries upset about what they perceive as the Syrian government's cruel, violent treatment of civilians have taken actions targeting the Syrian government. These have largely included sanctions, though some are suspected of funneling money and arms to opposition fighters within the war-torn country.

Yet action at the U.N. Security Council has been muted. Efforts by countries like the United States, France and Great Britain to be more forceful against al-Assad repeatedly thwarted by Russia and China, which have been wary of foreign intervention in Syria.