In yet another potential legal snag for Gov. Greg Abbott’s border crackdown, U.S. Customs and Border Protection (CBP) is investigating a recent string if migrant drownings near Eagle Pass, an agency source told the Houston Chronicle. It remains unclear precisely what prompted the probe, according to the Chronicle report. However, three migrants — a 21-year-old female, 19-year-old male and an unidentified individual — washed ashore in Eagle Pass after trying to cross the Rio Grande on Saturday. In the past week, another 10 migrants have drowned near Eagle Pass while trying to cross the river, which is unusually high due to recent rains, the Chronicle reports.