Twitter has issued a message to reassure its users after the social networking site detected "unusual access patterns" that led to "unauthorized access attempts to Twitter user data".
In a statement on Twitter's blog it said that its investigation had detected that attackers may have had access to usernames, email addresses and passwords for around 250,000 users.
More top news
Spencer Stone, one of the three American men who thwarted the French terror attack in August, has been stabbed repeatedly.
The 16-year-old's stepbrother and his girlfriend are accused of murdering her and then cutting her body up.
A top film producer is at the centre of an international manhunt after he disappeared, allegedly taking £45m of investment with him.