Prime Minister David Cameron has called the abduction of over 200 girls in Nigeria "an act of pure evil".
"It's united people across the planet to stand with Nigeria to help find these children and return them to their parents," said Mr Cameron during Prime Minister's Questions.
He said the government had made "repeated offers of help" to the Nigerian government since the girls were seized, and he plans to speak again to Nigeria's president this afternoon.
He added: "Britain stands ready to provide any assistance immediately we can, working very closely with the US."
The Nigerian military has flown more than 300 sorties in the hunt for the abducted schoolgirls, a Major has told ITV News' Rageh Omaar.
A newly released video from Boko Haram reportedly shows the kidnapped Nigerian schoolgirls.
The man who started a viral hashtag campaign in support of the kidnapped Nigerian schoolgirls says it has forced the government to act.