There are many reasons news can be inaccurate. Strong codes of ethics notwithstanding, journalists have biases and make mistakes. But then there is also mis- and disinformation: Satire or parody, misleading content, imposter content, fabricated content, false connection (misleading headlines, visuals, or captions), false context, and manipulated content.
Breaking news is especially vulnerable to mis/dis-information because:
Articles in print newspapers are in different sections: sports, editorials, local news, world news... . On the web, everything is in one long scroll, with dates and categories jumbled. The layouts of both create false connections.