US agents fire tear gas as some migrants try to breach fence

TIJUANA, Mexico — Hundreds of migrants approaching the U.S. border from Mexico were enveloped with tear gas Sunday after several tried to make it past fencing and wire separating the two countries.

Earlier in the morning, a group of Central Americans staged a peaceful march to appeal for the U.S. to speed up the asylum claims process, but their demonstration devolved as they neared the crossing with the U.S. and some saw an opportunity to breach the border.

http://www.startribune.com/migrants-march-toward-us-border-in-show-of-force/501204601/