Yasmin Alibhai-Brown said she did not accept the "apology" issued by Tory MP Mike Fabricant, after he tweeted about punching her in the throat.
Writing on Twitter, she said his comments were a "violent urge" and "unacceptable".
@mike_fabricant the tweet was offensive & your 'apology' useless. Tories like you think people like me should be ayahs or selling you curry
More top news
As Ireland went to the polls for a key gay marriage referendum, thousands shared their trips home to take part on the #HomeToVote hashtag.
The former Scottish Secretary was behind a controversial leaked memo released in the countdown to the general election, an inquiry has found
Warm sunny spells and some showers through rest of today across the UK, particularly in the southeast