A large law enforcement presence responded to a high school in Durham on Friday morning, resulting in the school being placed under lockdown, police said.

Durham residents said they were concerned about the tactics used by U.S. Customs and Border Protection agents while they made arrests Thursday, which led to the detention of three men from India.

Trump made illegal immigration a top issue during the campaign and has promised to purge the country of millions of immigrants who are in the U.S. without proper authorization. Critics say the ...