Read this story about another, although poorly done, browser hijacker attempt that may appear in your browser.
There is a lesson here. Be sure you can trust a site before you click on it.
This site was apparently compromised and the malicious link added. You can receive the same sort of malware in an email.
As noted in the article, you may be able to clear the problem by rebooting, or repeatedly clicking “Leave this page”.
Be especially careful if there seems to be no real connection to the website and the information you are looking for. Be smart. Stay safe!