A college campus in upstate New York was placed on lockdown after it received a ‘real’ and ‘credible’ threat Monday, prompting a massive armed police response, school officials said.Utica College administrators urged students and faculty to shelter in place as officers descended on the campus after a threat was phoned in shortly before noon.”There are armed police officers on campus. Please follow all instructions,” the college tweeted.The caller apparently phoned the college saying he was armed inside the Gordon Science Center. “Come get me,” the caller said, according to tweets from the college newspaper.