Renewed fighting has broken out between government and rebel forces in the Democratic Republic of Congo, just days after peace talks were suspended.
Both sides say the fighting began early Friday in Kanyamohoro, near the eastern city of Goma.
The Congolese army and rebel group M23 accuse each other of launching the first attacks.
Troops with the U.N. mission in Congo, known as MONUSCO, are reported to be standing by, ready to intervene if necessary.
High-level peace talks in Uganda between the government and M23 broke down on Monday, after the sides failed to reach an agreement on amnesty for the rebels and their reintegration into the armed forces.
M23 consists of rebel fighters who joined the Congolese army in a 2009 peace deal but later defected, saying they were treated poorly and the government did not live up to the deal.
Last year, the group took over territory in North Kivu province and briefly seized Goma, the provincial capital.
North Kivu and nearby provinces have endured years of fighting between the government and various militia and rebel groups. Much of the fighting is over control of the area's rich mines.
U.N. experts have accused Rwanda and Uganda of supporting M23, an allegation both nations deny.