Artikel 59

1. The requested State Party may, upon being satisfied that the circumstances so warrant and are urgent, at the request of the requesting State Party, take into custody a person whose extradition is sought and who is present in its territory or take any other appropriate measures to ensure the presence of that person at extradition proceedings.
2. The request for provisional arrest shall contain:
a) The information referred to in article 56, paragraph 2, subparagraphs (a) to (c), if required according to the domestic law of the requested State Party;
b) A description of the crime giving rise to the request and underlying facts;
c) A statement of the existence of the documents referred to in article 56;
d) A statement that a formal request for extradition of the person sought will follow.
3. The requested State Party shall, without undue delay, inform the requesting State Party of the result of its handling of the request for provisional arrest.
4. The provisional arrest shall be terminated if, within a period of 60 days after the arrest of the person sought, the requested State Party has not received the formal request for extradition. The person may be provisionally released at any time, in which case the requested State Party shall take any measures it considers necessary to prevent the escape of the person sought.
5. The termination of the provisional arrest pursuant to paragraph 4 shall not prejudice the re-arrest and subsequent extradition of the person concerned if the requested State Party subsequently receives the formal request for extradition.